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131118108 = 22311993319
BaseRepresentation
bin1111101000010…
…11010000011100
3100010201111020020
413310023100130
5232031234413
621002152140
73151325352
oct764132034
9303644206
10131118108
1168015a80
1237ab2650
132121a6a4
14135b17d2
15b79ec23
hex7d0b41c

131118108 has 24 divisors (see below), whose sum is σ = 333755520. Its totient is φ = 39732720.

The previous prime is 131118103. The next prime is 131118139. The reversal of 131118108 is 801811131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131118103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496528 + ... + 496791.

It is an arithmetic number, because the mean of its divisors is an integer number (13906480).

Almost surely, 2131118108 is an apocalyptic number.

It is an amenable number.

131118108 is an abundant number, since it is smaller than the sum of its proper divisors (202637412).

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

131118108 is a wasteful number, since it uses less digits than its factorization.

131118108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993337 (or 993335 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 24.

The square root of 131118108 is about 11450.6815517680. The cubic root of 131118108 is about 508.0278933575.

Adding to 131118108 its reverse (801811131), we get a palindrome (932929239).

The spelling of 131118108 in words is "one hundred thirty-one million, one hundred eighteen thousand, one hundred eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 993319 1986638 2979957 3973276 5959914 10926509 11919828 21853018 32779527 43706036 65559054 131118108