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131168885 = 52329371063
BaseRepresentation
bin1111101000101…
…11101001110101
3100010211001212212
413310113221311
5232034401020
621003223205
73151626401
oct764275165
9303731785
10131168885
1168050141
1237b17b05
1321237833
14135c6101
15b7aecc5
hex7d17a75

131168885 has 32 divisors (see below), whose sum is σ = 174666240. Its totient is φ = 94203648.

The previous prime is 131168867. The next prime is 131168893. The reversal of 131168885 is 588861131.

It is a cyclic number.

It is not a de Polignac number, because 131168885 - 28 = 131168629 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 31 ways as a sum of consecutive naturals, for example, 122864 + ... + 123926.

It is an arithmetic number, because the mean of its divisors is an integer number (5458320).

Almost surely, 2131168885 is an apocalyptic number.

It is an amenable number.

131168885 is a deficient number, since it is larger than the sum of its proper divisors (43497355).

131168885 is a wasteful number, since it uses less digits than its factorization.

131168885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157.

The product of its digits is 46080, while the sum is 41.

The square root of 131168885 is about 11452.8985414174. The cubic root of 131168885 is about 508.0934647814.

The spelling of 131168885 in words is "one hundred thirty-one million, one hundred sixty-eight thousand, eight hundred eighty-five".

Divisors: 1 5 23 29 37 115 145 185 667 851 1063 1073 3335 4255 5315 5365 24449 24679 30827 39331 122245 123395 154135 196655 709021 904613 1140599 3545105 4523065 5702995 26233777 131168885