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108900117 = 3231390323
BaseRepresentation
bin1100111110110…
…10111100010101
321120220200212200
412133122330111
5210334300432
614450035113
72461431024
oct637327425
9246820780
10108900117
11565202a7
1230578a99
131973b851
141066a8bb
159861a7c
hex67daf15

108900117 has 12 divisors (see below), whose sum is σ = 162374784. Its totient is φ = 70257960.

The previous prime is 108900097. The next prime is 108900151. The reversal of 108900117 is 711009801.

It is not a de Polignac number, because 108900117 - 26 = 108900053 is a prime.

It is a super-2 number, since 2×1089001172 = 23718470965227378, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108900217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194883 + ... + 195440.

It is an arithmetic number, because the mean of its divisors is an integer number (13531232).

Almost surely, 2108900117 is an apocalyptic number.

It is an amenable number.

108900117 is a deficient number, since it is larger than the sum of its proper divisors (53474667).

108900117 is a wasteful number, since it uses less digits than its factorization.

108900117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390360 (or 390357 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

The square root of 108900117 is about 10435.5218844100. The cubic root of 108900117 is about 477.5396631984.

Adding to 108900117 its reverse (711009801), we get a palindrome (819909918).

The spelling of 108900117 in words is "one hundred eight million, nine hundred thousand, one hundred seventeen".

Divisors: 1 3 9 31 93 279 390323 1170969 3512907 12100013 36300039 108900117