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130451188 = 22719245209
BaseRepresentation
bin1111100011010…
…00011011110100
3100002110121101111
413301220123310
5231343414223
620540004404
73142550110
oct761503364
9302417344
10130451188
11676aa9aa
1237830704
1321045c6a
141347a740
15b6bc30d
hex7c686f4

130451188 has 24 divisors (see below), whose sum is σ = 274635200. Its totient is φ = 52964928.

The previous prime is 130451177. The next prime is 130451213. The reversal of 130451188 is 881154031.

It is a super-2 number, since 2×1304511882 = 34035024901222688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122073 + ... + 123136.

Almost surely, 2130451188 is an apocalyptic number.

It is an amenable number.

130451188 is an abundant number, since it is smaller than the sum of its proper divisors (144184012).

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

130451188 is a wasteful number, since it uses less digits than its factorization.

130451188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245239 (or 245237 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 130451188 is about 11421.5230157803. The cubic root of 130451188 is about 507.1650833686.

The spelling of 130451188 in words is "one hundred thirty million, four hundred fifty-one thousand, one hundred eighty-eight".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 245209 490418 980836 1716463 3432926 4658971 6865852 9317942 18635884 32612797 65225594 130451188