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130156172 = 22231414741
BaseRepresentation
bin1111100001000…
…00011010001100
3100001220121200222
413300200122030
5231304444142
620525410512
73140211026
oct760403214
9301817628
10130156172
1167519293
1237709a38
1320c718b3
1413401016
15b65ebd2
hex7c2068c

130156172 has 12 divisors (see below), whose sum is σ = 237676656. Its totient is φ = 62248560.

The previous prime is 130156163. The next prime is 130156177. The reversal of 130156172 is 271651031.

It is not an unprimeable number, because it can be changed into a prime (130156177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707279 + ... + 707462.

It is an arithmetic number, because the mean of its divisors is an integer number (19806388).

Almost surely, 2130156172 is an apocalyptic number.

It is an amenable number.

130156172 is a deficient number, since it is larger than the sum of its proper divisors (107520484).

130156172 is a wasteful number, since it uses less digits than its factorization.

130156172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414768 (or 1414766 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 130156172 is about 11408.6007906316. The cubic root of 130156172 is about 506.7824760281.

The spelling of 130156172 in words is "one hundred thirty million, one hundred fifty-six thousand, one hundred seventy-two".

Divisors: 1 2 4 23 46 92 1414741 2829482 5658964 32539043 65078086 130156172