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137888065 = 5711173527
BaseRepresentation
bin10000011100000…
…00000101000001
3100121110102212101
420032000011001
5240244404230
621403230401
73263013010
oct1016000501
9317412771
10137888065
117091a387
123a218401
132274ac93
1414454a77
15c18aaca
hex8380141

137888065 has 16 divisors (see below), whose sum is σ = 189326592. Its totient is φ = 94440384.

The previous prime is 137888039. The next prime is 137888087. The reversal of 137888065 is 560888731.

It is a cyclic number.

It is not a de Polignac number, because 137888065 - 215 = 137855297 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37332 + ... + 40858.

It is an arithmetic number, because the mean of its divisors is an integer number (11832912).

Almost surely, 2137888065 is an apocalyptic number.

It is an amenable number.

137888065 is a deficient number, since it is larger than the sum of its proper divisors (51438527).

137888065 is a wasteful number, since it uses less digits than its factorization.

137888065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4656.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 137888065 is about 11742.5748879877. The cubic root of 137888065 is about 516.6251674380.

The spelling of 137888065 in words is "one hundred thirty-seven million, eight hundred eighty-eight thousand, sixty-five".

Divisors: 1 5 7 35 1117 3527 5585 7819 17635 24689 39095 123445 3939659 19698295 27577613 137888065