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157795713 = 3237473861
BaseRepresentation
bin10010110011111…
…00010110000001
3101222220212000200
421121330112001
5310343430323
623354035413
73624145545
oct1131742601
9358825020
10157795713
1181087289
1244a18b69
13268cb35a
1416d57a25
15dcbe443
hex967c581

157795713 has 12 divisors (see below), whose sum is σ = 234087828. Its totient is φ = 102353760.

The previous prime is 157795711. The next prime is 157795721. The reversal of 157795713 is 317597751.

157795713 is a `hidden beast` number, since 1 + 5 + 7 + 79 + 571 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 100460529 + 57335184 = 10023^2 + 7572^2 .

It is not a de Polignac number, because 157795713 - 21 = 157795711 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (157795711) 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, 236598 + ... + 237263.

It is an arithmetic number, because the mean of its divisors is an integer number (19507319).

Almost surely, 2157795713 is an apocalyptic number.

It is an amenable number.

157795713 is a deficient number, since it is larger than the sum of its proper divisors (76292115).

157795713 is a wasteful number, since it uses less digits than its factorization.

157795713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473904 (or 473901 counting only the distinct ones).

The product of its digits is 231525, while the sum is 45.

The square root of 157795713 is about 12561.6763610595. The cubic root of 157795713 is about 540.3789212892.

The spelling of 157795713 in words is "one hundred fifty-seven million, seven hundred ninety-five thousand, seven hundred thirteen".

Divisors: 1 3 9 37 111 333 473861 1421583 4264749 17532857 52598571 157795713