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108388386 = 2326021577
BaseRepresentation
bin1100111010111…
…10000000100010
321112221200220200
412131132000202
5210221412021
614431050030
72454200061
oct635360042
9245850820
10108388386
1156200887
1230370916
13195bc952
14105761d8
1597b0126
hex675e022

108388386 has 12 divisors (see below), whose sum is σ = 234841542. Its totient is φ = 36129456.

The previous prime is 108388373. The next prime is 108388393. The reversal of 108388386 is 683883801.

It can be written as a sum of positive squares in only one way, i.e., 88003161 + 20385225 = 9381^2 + 4515^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3010771 + ... + 3010806.

Almost surely, 2108388386 is an apocalyptic number.

108388386 is an abundant number, since it is smaller than the sum of its proper divisors (126453156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108388386 is a wasteful number, since it uses less digits than its factorization.

108388386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6021585 (or 6021582 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 108388386 is about 10410.9743059908. The cubic root of 108388386 is about 476.7904885317.

The spelling of 108388386 in words is "one hundred eight million, three hundred eighty-eight thousand, three hundred eighty-six".

Divisors: 1 2 3 6 9 18 6021577 12043154 18064731 36129462 54194193 108388386