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157827113 = 181871973
BaseRepresentation
bin10010110100001…
…00000000101001
3101222222110002122
421122010000221
5310400431423
623354441025
73624336233
oct1132040051
9358873078
10157827113
11810a8934
1244a33175
132690c732
1416d65253
15dcc88c8
hex9684029

157827113 has 4 divisors (see below), whose sum is σ = 158699268. Its totient is φ = 156954960.

The previous prime is 157827083. The next prime is 157827139. The reversal of 157827113 is 311728751.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20539024 + 137288089 = 4532^2 + 11717^2 .

It is a cyclic number.

It is not a de Polignac number, because 157827113 - 210 = 157826089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157827413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435806 + ... + 436167.

It is an arithmetic number, because the mean of its divisors is an integer number (39674817).

Almost surely, 2157827113 is an apocalyptic number.

It is an amenable number.

157827113 is a deficient number, since it is larger than the sum of its proper divisors (872155).

157827113 is an equidigital number, since it uses as much as digits as its factorization.

157827113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872154.

The product of its digits is 11760, while the sum is 35.

The square root of 157827113 is about 12562.9261320761. The cubic root of 157827113 is about 540.4147625096.

The spelling of 157827113 in words is "one hundred fifty-seven million, eight hundred twenty-seven thousand, one hundred thirteen".

Divisors: 1 181 871973 157827113