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157209160 = 2353930229
BaseRepresentation
bin10010101111011…
…01001001001000
3101221211001102111
421113231021020
5310221143120
623333312104
73616153513
oct1127551110
9357731374
10157209160
1180816629
1244795634
1326754394
1416c43d7a
15dc0575a
hex95ed248

157209160 has 16 divisors (see below), whose sum is σ = 353720700. Its totient is φ = 62883648.

The previous prime is 157209133. The next prime is 157209167. The reversal of 157209160 is 61902751.

It can be written as a sum of positive squares in 2 ways, for example, as 133957476 + 23251684 = 11574^2 + 4822^2 .

It is not an unprimeable number, because it can be changed into a prime (157209167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1965075 + ... + 1965154.

Almost surely, 2157209160 is an apocalyptic number.

157209160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157209160 is an abundant number, since it is smaller than the sum of its proper divisors (196511540).

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

157209160 is a wasteful number, since it uses less digits than its factorization.

157209160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930240 (or 3930236 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 157209160 is about 12538.3077008024. The cubic root of 157209160 is about 539.7085304052.

The spelling of 157209160 in words is "one hundred fifty-seven million, two hundred nine thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 3930229 7860458 15720916 19651145 31441832 39302290 78604580 157209160