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157493960 = 23513302873
BaseRepresentation
bin10010110001100…
…10101011001000
3101222100112002122
421120302223020
5310304301320
623343350412
73621451031
oct1130625310
9358315078
10157493960
11809a05a8
12448b2408
1326823bc0
1416cb9a88
15dc5ed25
hex9632ac8

157493960 has 32 divisors (see below), whose sum is σ = 381621240. Its totient is φ = 58151424.

The previous prime is 157493957. The next prime is 157493971. The reversal of 157493960 is 69394751.

It can be written as a sum of positive squares in 4 ways, for example, as 75446596 + 82047364 = 8686^2 + 9058^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150917 + ... + 151956.

Almost surely, 2157493960 is an apocalyptic number.

157493960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157493960 is an abundant number, since it is smaller than the sum of its proper divisors (224127280).

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

157493960 is a wasteful number, since it uses less digits than its factorization.

157493960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302897 (or 302893 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 157493960 is about 12549.6597563440. The cubic root of 157493960 is about 540.0342456562.

The spelling of 157493960 in words is "one hundred fifty-seven million, four hundred ninety-three thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 302873 605746 1211492 1514365 2422984 3028730 3937349 6057460 7874698 12114920 15749396 19686745 31498792 39373490 78746980 157493960