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57239943495 = 35719297313553
BaseRepresentation
bin110101010011110001…
…000011100101000111
312110202011001102000020
4311103301003211013
51414211411142440
642143510350223
74064313330510
oct652361034507
9173664042006
1057239943495
1122303501829
12b11565b373
1355229a6b67
142ab00a9a07
1517502a83d0
hexd53c43947

57239943495 has 128 divisors (see below), whose sum is σ = 115545139200. Its totient is φ = 23605198848.

The previous prime is 57239943491. The next prime is 57239943539. The reversal of 57239943495 is 59434993275.

57239943495 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57239943495 - 22 = 57239943491 is a prime.

It is a super-2 number, since 2×572399434952 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57239943491) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4216639 + ... + 4230191.

It is an arithmetic number, because the mean of its divisors is an integer number (902696400).

Almost surely, 257239943495 is an apocalyptic number.

57239943495 is an abundant number, since it is smaller than the sum of its proper divisors (58305195705).

57239943495 is a wasteful number, since it uses less digits than its factorization.

57239943495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13689.

The product of its digits is 36741600, while the sum is 60.

The spelling of 57239943495 in words is "fifty-seven billion, two hundred thirty-nine million, nine hundred forty-three thousand, four hundred ninety-five".

Divisors: 1 3 5 7 15 19 21 29 35 57 73 87 95 105 133 145 203 219 285 365 399 435 511 551 609 665 1015 1095 1387 1533 1653 1995 2117 2555 2755 3045 3857 4161 6351 6935 7665 8265 9709 10585 11571 13553 14819 19285 20805 29127 31755 40223 40659 44457 48545 57855 67765 74095 94871 120669 145635 201115 203295 222285 257507 281561 284613 393037 474355 603345 772521 844683 989369 1179111 1287535 1407805 1423065 1802549 1965185 2751259 2968107 3862605 4223415 4946845 5407647 5895555 6925583 7467703 8253777 9012745 13756295 14840535 18798011 20776749 22403109 27038235 28691701 34627915 37338515 41268885 52273921 56394033 86075103 93990055 103883745 112015545 131586077 143458505 156821763 200841907 261369605 281970165 394758231 430375515 545142319 602525721 657930385 784108815 1004209535 1635426957 1973791155 2725711595 3012628605 3815996233 8177134785 11447988699 19079981165 57239943495