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137475693 = 3253288209
BaseRepresentation
bin10000011000110…
…11011001101101
3100120200111012100
420030123121231
5240143210233
621350325313
73256344525
oct1014333155
9316614170
10137475693
1170668583
123a059839
1322635384
1414388685
15c108813
hex831b66d

137475693 has 12 divisors (see below), whose sum is σ = 202323420. Its totient is φ = 89920896.

The previous prime is 137475677. The next prime is 137475727. The reversal of 137475693 is 396574731.

137475693 is a `hidden beast` number, since 13 + 74 + 7 + 569 + 3 = 666.

137475693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 48399849 + 89075844 = 6957^2 + 9438^2 .

It is not a de Polignac number, because 137475693 - 24 = 137475677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137475643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143628 + ... + 144581.

It is an arithmetic number, because the mean of its divisors is an integer number (16860285).

Almost surely, 2137475693 is an apocalyptic number.

It is an amenable number.

137475693 is a deficient number, since it is larger than the sum of its proper divisors (64847727).

137475693 is a wasteful number, since it uses less digits than its factorization.

137475693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288268 (or 288265 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 137475693 is about 11725.0028997864. The cubic root of 137475693 is about 516.1096418355.

The spelling of 137475693 in words is "one hundred thirty-seven million, four hundred seventy-five thousand, six hundred ninety-three".

Divisors: 1 3 9 53 159 477 288209 864627 2593881 15275077 45825231 137475693