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137090370 = 23531147409
BaseRepresentation
bin10000010101111…
…01010101000010
3100112221220122010
420022331111002
5240043342440
621334153350
73253151244
oct1012752502
9315856563
10137090370
117042502a
1239ab2856
132252bb81
14142c8094
15c07e580
hex82bd542

137090370 has 32 divisors (see below), whose sum is σ = 339632640. Its totient is φ = 35377920.

The previous prime is 137090323. The next prime is 137090389. The reversal of 137090370 is 73090731.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72775 + ... + 74634.

It is an arithmetic number, because the mean of its divisors is an integer number (10613520).

Almost surely, 2137090370 is an apocalyptic number.

137090370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137090370 is an abundant number, since it is smaller than the sum of its proper divisors (202542270).

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

137090370 is a wasteful number, since it uses less digits than its factorization.

137090370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147450.

The product of its (nonzero) digits is 3969, while the sum is 30.

The square root of 137090370 is about 11708.5596893896. The cubic root of 137090370 is about 515.6269989271.

The spelling of 137090370 in words is "one hundred thirty-seven million, ninety thousand, three hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 147409 294818 442227 737045 884454 1474090 2211135 4422270 4569679 9139358 13709037 22848395 27418074 45696790 68545185 137090370