Numbers 190,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

All Numbers  &  -  110K  -  120K  -  130K  -  140K  -  150K  -  160K  -  170K  -  180K  -  190K

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

190,000

[Geology]  The number of lakes that Finland has, approximately. The number of islands is: 179,584, the most for a country in the world.

190,095

[Math.]  Two consecutive sums of consecutive numbers: 3249+…+3306 = 3307+…+3363 = 190,095.

190,476

[Math.]  Multiples of 047619 (the period of the rational number 1/21 = 0.047619047619… or 0.047619) by 4, 10, 13, 16 and 19 yield 5 other digit-rotations of the number itself: 190476, 476190, 619047, 761904 and 904761, respectively.

[Math.]  047,619×4 = 761,904 = 190,476×4.

193,939

[Math.]  Circular prime numbers: all 6 numbers 193939, 939391, 393919, 939193, 391939 and 919393 are prime.

194,481

[Math.]   (1+2+…+6)4 = [(15+25+…+65)+(17+27+…+67)]/2.

195,025

[Math.]  The 7th square number that is the sum of squares of 2 consecutive numbers: 38,034,750,625 = 195,0252 = 1379032+1379042. Each root number in the series is 6 times the previous root number minus the earlier root number: 1, 52, 292, 1692, 9852...

Or in other words:

(137,903, 137,904, 195,025) is the 7th Pythagorean triple (lengths of 3 sides of a right triangle), where two sides are consecutive integers.

[Math.]  One of Markov numbers are… 75025, 96557, 135137, 195025, 196418, 294685, 426389, 499393, 514229, 646018, 925765…

195,112

[Math.]  195,112 = (+19+51–12)3 = 583.

196,249

[Math.]  Square of numbers of similar pattern xxy, where y = x–1.

* 1102 = 012,100 & 012+100 = 112 = 110+2.

* 3322 = 110,224 & 110+224 = 334 = 332+2.

Similarly, 3…322 = 1…102…24 & 1…10+2…24 = 3…34 = 3…32+2.

333,3322 =  111,110,222,224 & 111,110+222,224 = 333,334 = 333,332+2.

* 4432 = 196,249 & 196+249 = 445 = 443+2

* 6652 = 442,225 & 442+225 = 667 = 665+2.

Similarly, 6…652 = 4…422…25 & 4…42+2…25 = 6…67 = 6…65+2.

* 7762 = 602,176 & 602+176 = 778 = 776+2.

196,418

[Math.]  The 27th Fibonacci number.

196,418

[Math.]  One of Markov numbers are… 75025, 96557, 135137, 195025, 196418, 294685, 426389, 499393, 514229, 646018, 925765…

196,611

[Math.]  A regular polygon with this odd number (product of Fermat prime numbers) of sides is constructible by using only straightedge and compass. 196,611 = 3´65,537.

196,724

[Math.]  A pair of amicable numbers (196724, 220444).

196,883

[Math.]  A prime number.

The minimum number of dimensions of a crystal lattice whose symmetry rotations and reflections form the Monster group (constructed by Robert Griess in 1982). Proved by the Fields medalist Richard Borcherds, in 1998.

196,884

[Math.]  A Ramanujan constant: 196,884 = 22×33×1823 = 196,883+1.

198,025

[Math.]  1122 = 012,544 & 012+544 = 556 ® 5562 = 309,136 & 309+136 = 445 & 4452 = 198,025 & 198+025 = 223 & 2232 = 049,729 & 049+729 = 778 & 7782 = 605,284 & 605+284 = 889 & 8892 = 790,321 & 790+321 = 1111. Also in the same pattern: 3342 = 111556 & 111+556 = 667.

198,354

Math.]  Zero-less pan-digital number factorization:

124,367,958 = 627×198354 = 9×26×531487.

199,933

[Math.]  Circular prime numbers: all 6 numbers 199933, 999331, 993319, 933199, 331999 and 319993 are prime.

199,998

[Math.]  66,6663 = 296287407496296 and 29628+74074+96296 = 2×99999.

99,9993 = 999970000299999 and  99997+00002+99999 = 2×99999 = 199,998.

[Math.]  The numbers 199989394, 199989404 and 199989464 begin with the digits 394, 404 and 464 respectively.