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137875045 = 57111572281
BaseRepresentation
bin10000011011111…
…00111001100101
3100121102210000011
420031330321211
5240244000140
621403050221
73262630030
oct1015747145
9317383004
10137875045
1170910620
123a210971
1322745089
1414450017
15c186cea
hex837ce65

137875045 has 32 divisors (see below), whose sum is σ = 207680256. Its totient is φ = 85363200.

The previous prime is 137875043. The next prime is 137875051. The reversal of 137875045 is 540578731.

It is not a de Polignac number, because 137875045 - 21 = 137875043 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 137874989 and 137875007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137875043) 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, 59305 + ... + 61585.

It is an arithmetic number, because the mean of its divisors is an integer number (6490008).

Almost surely, 2137875045 is an apocalyptic number.

It is an amenable number.

137875045 is a deficient number, since it is larger than the sum of its proper divisors (69805211).

137875045 is a wasteful number, since it uses less digits than its factorization.

137875045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 137875045 is about 11742.0204820125. The cubic root of 137875045 is about 516.6089062496.

The spelling of 137875045 in words is "one hundred thirty-seven million, eight hundred seventy-five thousand, forty-five".

Divisors: 1 5 7 11 35 55 77 157 385 785 1099 1727 2281 5495 8635 11405 12089 15967 25091 60445 79835 125455 175637 358117 878185 1790585 2506819 3939287 12534095 19696435 27575009 137875045