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138353105 = 5117573323
BaseRepresentation
bin10000011111100…
…01100111010001
3100122100001210002
420033301213101
5240404244410
621421215345
73266660552
oct1017614721
9318301702
10138353105
1171107810
123a401555
1322881857
1414536329
15c22d7a5
hex83f19d1

138353105 has 16 divisors (see below), whose sum is σ = 181410624. Its totient is φ = 100457280.

The previous prime is 138353099. The next prime is 138353107. The reversal of 138353105 is 501353831.

138353105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138353105 - 214 = 138336721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (138353107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39974 + ... + 43296.

It is an arithmetic number, because the mean of its divisors is an integer number (11338164).

Almost surely, 2138353105 is an apocalyptic number.

It is an amenable number.

138353105 is a deficient number, since it is larger than the sum of its proper divisors (43057519).

138353105 is a wasteful number, since it uses less digits than its factorization.

138353105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 138353105 is about 11762.3596697261. The cubic root of 138353105 is about 517.2053041427.

The spelling of 138353105 in words is "one hundred thirty-eight million, three hundred fifty-three thousand, one hundred five".

Divisors: 1 5 11 55 757 3323 3785 8327 16615 36553 41635 182765 2515511 12577555 27670621 138353105