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108157855 = 5131663967
BaseRepresentation
bin1100111001001…
…01101110011111
321112111222200111
412130211232133
5210142022410
614422110451
72452220011
oct634455637
9245458614
10108157855
1156063663
123027b427
131953ba40
14105161b1
159766b8a
hex6725b9f

108157855 has 8 divisors (see below), whose sum is σ = 139773312. Its totient is φ = 79870368.

The previous prime is 108157811. The next prime is 108157867. The reversal of 108157855 is 558751801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108157855 - 213 = 108149663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 831919 + ... + 832048.

It is an arithmetic number, because the mean of its divisors is an integer number (17471664).

Almost surely, 2108157855 is an apocalyptic number.

108157855 is a deficient number, since it is larger than the sum of its proper divisors (31615457).

108157855 is a wasteful number, since it uses less digits than its factorization.

108157855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663985.

The product of its (nonzero) digits is 56000, while the sum is 40.

The square root of 108157855 is about 10399.8968744887. The cubic root of 108157855 is about 476.4522204129.

The spelling of 108157855 in words is "one hundred eight million, one hundred fifty-seven thousand, eight hundred fifty-five".

Divisors: 1 5 13 65 1663967 8319835 21631571 108157855