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157539228054 = 23134367897877
BaseRepresentation
bin1001001010111000010…
…0011101100110010110
3120001122011211222111020
42102232010131212112
510040120020244204
6200212244222010
714244653225655
oct2225604354626
9501564758436
10157539228054
11608a287283a
122664769a906
1311b184c3850
1478a6b9519c
15417090ebd9
hex24ae11d996

157539228054 has 128 divisors (see below), whose sum is σ = 356393157120. Its totient is φ = 46109758464.

The previous prime is 157539228031. The next prime is 157539228059. The reversal of 157539228054 is 450822935751.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 157539227988 and 157539228006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157539228059) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19995964 + ... + 20003840.

It is an arithmetic number, because the mean of its divisors is an integer number (2784321540).

Almost surely, 2157539228054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157539228054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178196578560).

157539228054 is an abundant number, since it is smaller than the sum of its proper divisors (198853929066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157539228054 is a wasteful number, since it uses less digits than its factorization.

157539228054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8094.

The product of its (nonzero) digits is 3024000, while the sum is 51.

The spelling of 157539228054 in words is "one hundred fifty-seven billion, five hundred thirty-nine million, two hundred twenty-eight thousand, fifty-four".

Divisors: 1 2 3 6 13 26 39 43 67 78 86 89 129 134 178 201 258 267 402 534 559 871 1118 1157 1677 1742 2314 2613 2881 3354 3471 3827 5226 5762 5963 6942 7654 7877 8643 11481 11926 15754 17286 17889 22962 23631 35778 37453 47262 49751 74906 77519 99502 102401 112359 149253 155038 204802 224718 232557 256409 298506 307203 338711 465114 512818 527759 614406 677422 701053 769227 1016133 1055518 1402106 1538454 1583277 2032266 2103159 3166554 3333317 4206318 4403243 6666634 6860867 8806486 9113689 9999951 13209729 13721734 18227378 19999902 20582601 22693637 26419458 27341067 30145279 41165202 45387274 46970551 54682134 60290558 68080911 90435837 93941102 136161822 140911653 180871674 281823306 295017281 391888627 590034562 610617163 783777254 885051843 1175665881 1221234326 1770103686 1831851489 2019733693 2351331762 3663702978 4039467386 6059201079 12118402158 26256538009 52513076018 78769614027 157539228054