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137373725 = 5229892129
BaseRepresentation
bin10000011000000…
…10100000011101
3100120111022022202
420030002200131
5240131424400
621344221245
73255441326
oct1014024035
9316438282
10137373725
11705a8a05
123a00a825
13225cab38
141435d44d
15c0d84d5
hex830281d

137373725 has 24 divisors (see below), whose sum is σ = 178281000. Its totient is φ = 104867840.

The previous prime is 137373707. The next prime is 137373737. The reversal of 137373725 is 527373731.

It can be written as a sum of positive squares in 12 ways, for example, as 73085401 + 64288324 = 8549^2 + 8018^2 .

It is not a de Polignac number, because 137373725 - 26 = 137373661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63461 + ... + 65589.

It is an arithmetic number, because the mean of its divisors is an integer number (7428375).

Almost surely, 2137373725 is an apocalyptic number.

It is an amenable number.

137373725 is a deficient number, since it is larger than the sum of its proper divisors (40907275).

137373725 is a wasteful number, since it uses less digits than its factorization.

137373725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257 (or 2252 counting only the distinct ones).

The product of its digits is 92610, while the sum is 38.

The square root of 137373725 is about 11720.6537786934. The cubic root of 137373725 is about 515.9820079158.

The spelling of 137373725 in words is "one hundred thirty-seven million, three hundred seventy-three thousand, seven hundred twenty-five".

Divisors: 1 5 25 29 89 145 445 725 2129 2225 2581 10645 12905 53225 61741 64525 189481 308705 947405 1543525 4737025 5494949 27474745 137373725