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137430904 = 23131321451
BaseRepresentation
bin10000011000100…
…00011101111000
3100120121012202111
420030100131320
5240140242104
621345342104
73256100122
oct1014203570
9316535674
10137430904
1170637966
123a037934
132261ab80
1414376212
15c0ea404
hex8310778

137430904 has 16 divisors (see below), whose sum is σ = 277504920. Its totient is φ = 63429600.

The previous prime is 137430899. The next prime is 137430919. The reversal of 137430904 is 409034731.

It is a congruent number.

It is an unprimeable number.

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, 660622 + ... + 660829.

Almost surely, 2137430904 is an apocalyptic number.

It is an amenable number.

137430904 is an abundant number, since it is smaller than the sum of its proper divisors (140074016).

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

137430904 is a wasteful number, since it uses less digits than its factorization.

137430904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321470 (or 1321466 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 137430904 is about 11723.0927659897. The cubic root of 137430904 is about 516.0535869673.

The spelling of 137430904 in words is "one hundred thirty-seven million, four hundred thirty thousand, nine hundred four".

Divisors: 1 2 4 8 13 26 52 104 1321451 2642902 5285804 10571608 17178863 34357726 68715452 137430904