Numbers 370-379

A page of the Numeropedia - the Special Encyclopedia of Numbers

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370

[Math.]  37×(3+7) = 33+73 = 370.

[Phone]  International telephone dialing code for Lithuania.

370 & 371

[Math.]  One of only 4 numbers (other than 1), which are the sum of cubes of their digits: 370 = 33+73+03. The other such numbers, called Armstrong numbers, are: 153 = 13+53+33, 371 = 33+73+13 and 407 = 43+03+73.  (Generalizable).

371

[Math.]  Sum of all prime numbers from 7 to 53 is the product of 2 numbers themselves, 7 and 53: 371 = 7×53 = 7+11+13+17+19+23+29+31+37+41+43+47+53.

[Phone]  International telephone dialing code for Latvia.

372

[Math.] 101,556 = 372×273 = 651×156.

[Phone]  International telephone dialing code for Estonia.

[World]  The ISO country code for Ireland. (ISO-3166)

373

[Library]  ISBN-0-373 is the International Standard Book Number for books published by Harlequin/TheNextNovel.com.

[Math.]  An absolute prime number (or permutable prime number): all 3 numbers 373, 733 and 337 are prime or in fact, absolute prime. A palindromic prime number.

[Math.]  Circular prime numbers: all 3 numbers 373, 733 and 337 are prime.

[Math.]  A bi-truncatable prime number: self, 37 and 3 are prime numbers.

[Measure]  1 troy pound = 373 g (grams).

Units for precious metals weight measures: 1 troy pound = 12 troy ounces = 240 pennyweights = 5760 grains = 373 g (grams).

373.15

[Science]  The boiling point of water: 100 oC (Celsius or centigrade) = 212 oF (Fahrenheit) = 373.15 K (Kelvin).

374

[Library]  ISBN-0-374 is the International Standard Book Number for books published by Farrar, Straus and Giroux.

[Phone]  International telephone dialing code for Armenia.

375

[Library]  ISBN-0-375 is the International Standard Book Number for books published by Random House.

[Math.]  Its odd powers end with 375. Its even powers end with 625.

[Phone]  International telephone dialing code for Belarus (before 1991, Byelorussia).

376

[Library]  ISBN-0-376 is the International Standard Book Number for books published by Sunset Books.

[Math.]  376 = 17+35+53+71.

[Math.]  All powers of 376 (or any number ending by 376) end with 376:

3762 = 141,376; 3763 = 53,157,376; 3764 = 19,987,173,376…

The number 625 is the only other 3-digit number whose all powers (of itself or any number ending by 625) end with 625. They are called automorphic numbers.

[Phone]  International telephone dialing code for Andorra.

[World]  The ISO country code for Israel. (ISO-3166)

[Science]  The impedance of vacuum (free space) is 376.730313461 Ω (ohms).

377

[Math.]  The 14th Fibonacci number.

[Phone]  International telephone dialing code for Monaco.

378

[Math.]  A triangular number (sum of all integers from 1 to 27): 378 = 1+2+…+26+27.

[Phone]  International telephone dialing code for San Marino.

379

[Math.]  A right-truncatable prime number: self, 37 and 3 are prime numbers.

[Phone]  International telephone dialing code for Vatican City.