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156118313 = 1325771601
BaseRepresentation
bin10010100111000…
…10110100101001
3101212202122001202
421103202310221
5304431241223
623254053545
73603661301
oct1123426451
9355678052
10156118313
1180140aaa
124434a2b5
1326461a00
1416a3c601
15da8c428
hex94e2d29

156118313 has 12 divisors (see below), whose sum is σ = 169449948. Its totient is φ = 143769600.

The previous prime is 156118309. The next prime is 156118343. The reversal of 156118313 is 313811651.

It can be written as a sum of positive squares in 6 ways, for example, as 16216729 + 139901584 = 4027^2 + 11828^2 .

It is not a de Polignac number, because 156118313 - 22 = 156118309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156118343) 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, 96713 + ... + 98313.

It is an arithmetic number, because the mean of its divisors is an integer number (14120829).

Almost surely, 2156118313 is an apocalyptic number.

156118313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

156118313 is a deficient number, since it is larger than the sum of its proper divisors (13331635).

156118313 is a wasteful number, since it uses less digits than its factorization.

156118313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204 (or 2191 counting only the distinct ones).

The product of its digits is 2160, while the sum is 29.

The square root of 156118313 is about 12494.7314096782. The cubic root of 156118313 is about 538.4573174243.

Adding to 156118313 its reverse (313811651), we get a palindrome (469929964).

The spelling of 156118313 in words is "one hundred fifty-six million, one hundred eighteen thousand, three hundred thirteen".

Divisors: 1 13 169 577 1601 7501 20813 97513 270569 923777 12009101 156118313