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108186868 = 2227046717
BaseRepresentation
bin1100111001011…
…00110011110100
321112120110111001
412130230303310
5210143434433
614422453044
72452400416
oct634546364
9245513431
10108186868
1156083439
1230294184
131954bcca
14105229b6
15977057d
hex672ccf4

108186868 has 6 divisors (see below), whose sum is σ = 189327026. Its totient is φ = 54093432.

The previous prime is 108186863. The next prime is 108186899. The reversal of 108186868 is 868681801.

It can be written as a sum of positive squares in only one way, i.e., 107288164 + 898704 = 10358^2 + 948^2 .

It is a super-3 number, since 3×1081868683 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108186863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13523355 + ... + 13523362.

Almost surely, 2108186868 is an apocalyptic number.

It is an amenable number.

108186868 is a deficient number, since it is larger than the sum of its proper divisors (81140158).

108186868 is a wasteful number, since it uses less digits than its factorization.

108186868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27046721 (or 27046719 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 46.

The square root of 108186868 is about 10401.2916505596. The cubic root of 108186868 is about 476.4948188675.

The spelling of 108186868 in words is "one hundred eight million, one hundred eighty-six thousand, eight hundred sixty-eight".

Divisors: 1 2 4 27046717 54093434 108186868