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130072292 = 22716727817
BaseRepresentation
bin1111100000010…
…11111011100100
3100001202100122022
413300023323210
5231244303132
620523522312
73136411340
oct760137344
9301670568
10130072292
1167471269
1237689398
1320c4266c
14133bc620
15b644e12
hex7c0bee4

130072292 has 24 divisors (see below), whose sum is σ = 261711744. Its totient is φ = 55409472.

The previous prime is 130072289. The next prime is 130072297. The reversal of 130072292 is 292270031.

It is a super-2 number, since 2×1300722922 = 33837602292266528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130072297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9233 + ... + 18584.

It is an arithmetic number, because the mean of its divisors is an integer number (10904656).

Almost surely, 2130072292 is an apocalyptic number.

It is an amenable number.

130072292 is an abundant number, since it is smaller than the sum of its proper divisors (131639452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130072292 is a wasteful number, since it uses less digits than its factorization.

130072292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27995 (or 27993 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 130072292 is about 11404.9240242976. The cubic root of 130072292 is about 506.6735862013.

The spelling of 130072292 in words is "one hundred thirty million, seventy-two thousand, two hundred ninety-two".

Divisors: 1 2 4 7 14 28 167 334 668 1169 2338 4676 27817 55634 111268 194719 389438 778876 4645439 9290878 18581756 32518073 65036146 130072292