Numbers 2000-2099

A page of the Numeropedia - the Special Encyclopedia of Numbers

& [10K] & [100K]

1  - 10 - 100  - 1000 - 10,000 - 100,000 - 1M - 10M - 100M1B10B - 100B - 1T - 10T - 100T - 1Q - ...

2000 (separate page)

2,001

[Calendar]  The first year of the 21st century and of the 2nd millennium.

[Movie]  Name of TV show/series or movie: “2001: A Space Odyssey”.

2,002

[Math.]  (Sequence of numbers 20…02)

20023 = 8,024,024,008 = (–8+02402–400+8)3

2,003

[Calendar & Math.]  The first year that is a prime number in the 21st century.

2,004

[Math.]  20042 = 4,016,016.

2012

[Calendar] The “Long Count”, a Maya calendar system, tracking the duration of “great cycles” of time shows that the current cycle began on August 13, 3114 B.C and ends on Maya’s “13.0.0.0.0”, which is December 23, 2012

[Misc.]  Name of TV show/series or movie: “2012”.

2,014

[Money]  An enRoute credit card number starts with either 2014 or 2149.

2,016

[Math.]  A triangular number (sum of all integers from 1 to 63): 2016 = 1+2+…+62+63.

[Math.]

12×21 = 252 = 21×12

12×42 = 504 = 21×24          24×21 =    504 = 42×12

12×63 = 756 = 21×36          24×63 = 1,512 = 42×36

12×84 = 1,008 = 21×48       24×42 = 1,008 = 42×24

36×84 = 3,024 = 63×48       24×84 = 2,016 = 42×48.

2,018

[Zip]  U.S. Postal Zip Code: Accord, Massachusetts 02018. The first year of the 21st century to be a U.S. Zip Code.

2,019

[Math.]  20193 = 8,230,172,859 = (–823–017+2859)3.

2,025

[Math.]  2025 = (20+25)2 = 452 and 3025 = (30+25)2 = 552 and 45+55 = 100.

[Math.]  452 = 2,025 and if all digits are incremented (except the exponent) by 1: 562 = 3,136.

[Math.]  Sum of the first 9 cube numbers:

13+23+33+43+53+63+73+83+93 = 2025 = (1+2+3+4+5+6+7+8+9)2 = 452.

2,030

[Math.]  Two consecutive sums of consecutive square numbers:

212+222+232+242 = 2,030 = 252+262+272.

2,033

[Calendar]  An exceptional Chinese year when the leap month is after the month of November, a correction from earlier calendars, which was after the month of July.

2,038

[Tech.]  The UNIX 2038 bug: Starting at GMT 03:14:07, Tuesday, January 19, 2038 C.E., the time counters for the Unix system will reset to its birthday on GMT 00:00:00 Thursday, January 1, 1970 C.E.

2,042

[Measure]  A candela is the luminous intensity of 1/600,000 of a square meter of a cavity at the temperature of freezing platinum, 2042 oK.

2,045

[Math.]  A primitive Pythagorean triangle of sides (693, 1924, 2045) has area 666,666.

2,046

[Movie]  Name of TV show/series or movie: “2046”.

2,047

[Math.]  The smallest Mersenne number of the form 2p–1 is not a prime number, even though p is a prime number: 211–1 = 2,047 = 23´89.

[Math.]  2,047 = 23×89 and 2,407 = 29×83.

2,062

[Astronomy]  The year of next return of the Halley’s comet, whose period around the Earth is 76 years. It was last seen in 1986. Edmund Halley (English) first discovered it in 1705.

2,078

[Math.]  20783 = 8,972,978,552 has each of its digits occurring twice.

2,080

[Math.]  A triangular number (sum of all integers from 1 to 64): 2080 = 1+2+…+63+64.

2,087

[Money]  The number of working hours in a year for the purpose of salary conversion between annual salary and hour rate.

2,099

[Calendar & Math.]  The last year that is a prime number in the 21st century.

02nnn

[Zip]  U.S. Postal Zip Codes of Massachusetts: 01nnn and 020nn-027nn.

U.S. Postal Zip Codes of Rhode Island: 028nn and 029nn.

1980--2009 & 2010--2039

[Tech.]  The 10th digit of a 17-character VIN (Vehicle Identification Number) indicates the model year of an automobile (after 1980). The 7th character decides the year range [1980-2009] or [2010-2039].

 A = 1980 or 2010… L = 1990 or 2020… Y = 2000 or 2030… B = 1981 or 2011… M = 1991 or 2021… 1 = 2001 or 2031… C = 1982 or 2012… N = 1992 or 2022… 2 = 2002 or 2032… D = 1983 or 2013… P = 1993 or 2023… 3 = 2003 or 2033… E = 1984 or 2014… R = 1994 or 2024… 4 = 2004 or 2034… F = 1985 or 2015… S = 1995 or 2025… 5 = 2005 or 2035… G = 1986 or 2016… T= 1996 or 2026… 6 = 2006 or 2036… H = 1987 or 2017… V = 1997 or 2027… 7 = 2007 or 2037… J = 1988 or 2018… W = 1998 or 2028… 8 = 2008 or 2038… K = 1989 or 2019… X = 1999 or 2029… 9 = 2009 or 2039…