Number 52

A page of the Numeropedia - the Special Encyclopedia of Numbers

[50-59]50 - 51 - 52 - 53 - 54 - 5556 - 57 - 58 - 59

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[Biology]  The number of teeth each people has in the lifetime, including 20 “baby teeth” or “milk teeth” which are deciduous and 32 teeth in an adult full set of teeth.

[Calendar]  The number of weeks (plus 1 or 2 days) in a calendar year.

The maximum number of complete (full) weeks in a calendar year.

The minimum number of any weekdays in a calendar year.

[Chemistry]  The atomic number of Tellurium (Te).

[Game]  The number of letters (and spaces) available on the current version puzzle-board of the “Wheel of Fortune” TV show: 12 each on the top row and the bottom row and 14 each on the middle 2 rows.

[Math.]  An untouchable number. The sequence of the firstuntouchable numbers is: 2, 5, 52, 88, 96, 120…

[Math.]  524 = 7,311,616 = (7+31+1+6+1+6)4.

[Money]  A MasterCard credit card number starts with either 2 digits 51, 52, 53, 54 or 55.

[Music]  The number of white keys of a modern piano (together with 36 black keys).

[Phone]  International telephone dialing code for Mexico.

[Sport]  The loft angle of iron golf clubs is increased by 4o from the vertical, from 2-iron to 9-iron; for pitching wedge is 52o and sand wedge 58o.

2-iron: 18o         3-iron: 22o     4-iron: 26o      5-iron: 30o

6-iron: 34o         7-iron: 38o     8-iron: 42o      9-iron: 46o.

[World]  The ISO country code for Barbados is 052 (ISO-3166)

[Measure]  The duration of a micro-century (by currently-used Gregorian calendar): 52m 35.6952s. By Julian calendar, it is 52m 35.76s. It is about the length of a standard lecture 50-60 minutes.

[Science]  The bohr radius is the smallest possible orbit for the electron in the Hydrogen atom: 52.9×10–12m or 52.9 picometers = 0.529 Ångström.