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137869590 = 23523199811
BaseRepresentation
bin10000011011110…
…11100100010110
3100121102111112010
420031323210112
5240243311330
621403005050
73262605105
oct1015734426
9317374463
10137869590
1170907511
123a209786
1322742751
141444c03c
15c1853b0
hex837b916

137869590 has 32 divisors (see below), whose sum is σ = 345275136. Its totient is φ = 35166560.

The previous prime is 137869583. The next prime is 137869591. The reversal of 137869590 is 95968731.

137869590 is digitally balanced in base 2, 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 (137869591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99216 + ... + 100595.

It is an arithmetic number, because the mean of its divisors is an integer number (10789848).

Almost surely, 2137869590 is an apocalyptic number.

137869590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137869590 is an abundant number, since it is smaller than the sum of its proper divisors (207405546).

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

137869590 is a wasteful number, since it uses less digits than its factorization.

137869590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199844.

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 137869590 is about 11741.7881943084. The cubic root of 137869590 is about 516.6020929820.

The spelling of 137869590 in words is "one hundred thirty-seven million, eight hundred sixty-nine thousand, five hundred ninety".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 199811 399622 599433 999055 1198866 1998110 2997165 4595653 5994330 9191306 13786959 22978265 27573918 45956530 68934795 137869590