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137860345 = 5729711913
BaseRepresentation
bin10000011011110…
…01010011111001
3100121102000211201
420031321103321
5240243012340
621402454201
73262536130
oct1015712371
9317360751
10137860345
1170900577
123a204361
132273b48c
1414448917
15c18279a
hex83794f9

137860345 has 32 divisors (see below), whose sum is σ = 198443520. Its totient is φ = 89940480.

The previous prime is 137860343. The next prime is 137860363. The reversal of 137860345 is 543068731.

It is not a de Polignac number, because 137860345 - 21 = 137860343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137860343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71109 + ... + 73021.

It is an arithmetic number, because the mean of its divisors is an integer number (6201360).

Almost surely, 2137860345 is an apocalyptic number.

It is an amenable number.

137860345 is a deficient number, since it is larger than the sum of its proper divisors (60583175).

137860345 is a wasteful number, since it uses less digits than its factorization.

137860345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 137860345 is about 11741.3945083197. The cubic root of 137860345 is about 516.5905456129.

The spelling of 137860345 in words is "one hundred thirty-seven million, eight hundred sixty thousand, three hundred forty-five".

Divisors: 1 5 7 29 35 71 145 203 355 497 1015 1913 2059 2485 9565 10295 13391 14413 55477 66955 72065 135823 277385 388339 679115 950761 1941695 3938867 4753805 19694335 27572069 137860345