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137806630 = 25131060051
BaseRepresentation
bin10000011011011…
…00001100100110
3100121022022011021
420031230030212
5240234303010
621401401354
73262223413
oct1015541446
9317268137
10137806630
1170874185
123a19925a
132271cbb0
141443310a
15c1718da
hex836c326

137806630 has 16 divisors (see below), whose sum is σ = 267133104. Its totient is φ = 50882400.

The previous prime is 137806609. The next prime is 137806633. The reversal of 137806630 is 36608731.

137806630 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137806633) 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, 529896 + ... + 530155.

It is an arithmetic number, because the mean of its divisors is an integer number (16695819).

Almost surely, 2137806630 is an apocalyptic number.

137806630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137806630 is a deficient number, since it is larger than the sum of its proper divisors (129326474).

137806630 is a wasteful number, since it uses less digits than its factorization.

137806630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060071.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 137806630 is about 11739.1068655158. The cubic root of 137806630 is about 516.5234432472.

The spelling of 137806630 in words is "one hundred thirty-seven million, eight hundred six thousand, six hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 1060051 2120102 5300255 10600510 13780663 27561326 68903315 137806630