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157060657 = 1325471699
BaseRepresentation
bin10010101110010…
…00111000110001
3101221112111201101
421113020320301
5310201420112
623330204401
73614664535
oct1127107061
9357474641
10157060657
1180724aa6
1244723701
1326701900
1416c05bc5
15dbc6757
hex95c8e31

157060657 has 12 divisors (see below), whose sum is σ = 170482800. Its totient is φ = 144628848.

The previous prime is 157060633. The next prime is 157060679. The reversal of 157060657 is 756060751.

It is a de Polignac number, because none of the positive numbers 2k-157060657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157060357) 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 11 ways as a sum of consecutive naturals, for example, 91594 + ... + 93292.

It is an arithmetic number, because the mean of its divisors is an integer number (14206900).

Almost surely, 2157060657 is an apocalyptic number.

It is an amenable number.

157060657 is a deficient number, since it is larger than the sum of its proper divisors (13422143).

157060657 is a wasteful number, since it uses less digits than its factorization.

157060657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272 (or 2259 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 157060657 is about 12532.3843302063. The cubic root of 157060657 is about 539.5385369482.

The spelling of 157060657 in words is "one hundred fifty-seven million, sixty thousand, six hundred fifty-seven".

Divisors: 1 13 169 547 1699 7111 22087 92443 287131 929353 12081589 157060657