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157164113 = 679123143
BaseRepresentation
bin10010101111000…
…10001001010001
3101221201202122002
421113202021101
5310213222423
623332323345
73615605261
oct1127421121
9357652562
10157164113
11807957a7
1244773555
1326739a22
1416c317a1
15dbe7228
hex95e2251

157164113 has 4 divisors (see below), whose sum is σ = 157194048. Its totient is φ = 157134180.

The previous prime is 157164047. The next prime is 157164127. The reversal of 157164113 is 311461751.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311461751 = 1151270601.

It is a cyclic number.

It is not a de Polignac number, because 157164113 - 28 = 157163857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157104113) 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, 4781 + ... + 18362.

It is an arithmetic number, because the mean of its divisors is an integer number (39298512).

Almost surely, 2157164113 is an apocalyptic number.

It is an amenable number.

157164113 is a deficient number, since it is larger than the sum of its proper divisors (29935).

157164113 is an equidigital number, since it uses as much as digits as its factorization.

157164113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29934.

The product of its digits is 2520, while the sum is 29.

The square root of 157164113 is about 12536.5111972989. The cubic root of 157164113 is about 539.6569757911.

The spelling of 157164113 in words is "one hundred fifty-seven million, one hundred sixty-four thousand, one hundred thirteen".

Divisors: 1 6791 23143 157164113