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157391960 = 235112311049
BaseRepresentation
bin10010110000110…
…01110001011000
3101222011100011212
421120121301120
5310243020320
623341242252
73620544455
oct1130316130
9358140155
10157391960
1180930a00
1244863388
13267b964b
1416c9082c
15dc3e9c5
hex9619c58

157391960 has 96 divisors (see below), whose sum is σ = 402192000. Its totient is φ = 55334400.

The previous prime is 157391957. The next prime is 157391977. The reversal of 157391960 is 69193751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149516 + ... + 150564.

It is an arithmetic number, because the mean of its divisors is an integer number (4189500).

Almost surely, 2157391960 is an apocalyptic number.

157391960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157391960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201096000).

157391960 is an abundant number, since it is smaller than the sum of its proper divisors (244800040).

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

157391960 is a wasteful number, since it uses less digits than its factorization.

157391960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 157391960 is about 12545.5952429528. The cubic root of 157391960 is about 539.9176371869.

The spelling of 157391960 in words is "one hundred fifty-seven million, three hundred ninety-one thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 11 20 22 31 40 44 55 62 88 110 121 124 155 220 242 248 310 341 440 484 605 620 682 968 1049 1210 1240 1364 1705 2098 2420 2728 3410 3751 4196 4840 5245 6820 7502 8392 10490 11539 13640 15004 18755 20980 23078 30008 32519 37510 41960 46156 57695 65038 75020 92312 115390 126929 130076 150040 162595 230780 253858 260152 325190 357709 461560 507716 634645 650380 715418 1015432 1269290 1300760 1430836 1788545 2538580 2861672 3577090 3934799 5077160 7154180 7869598 14308360 15739196 19673995 31478392 39347990 78695980 157391960