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131153111 = 5361113359
BaseRepresentation
bin1111101000100…
…11110011010111
3100010210021020122
413310103303113
5232033344421
621003022155
73151532405
oct764236327
9303707218
10131153111
116803a301
1237b0a95b
13212305bb
14135c0475
15b7aa2ab
hex7d13cd7

131153111 has 16 divisors (see below), whose sum is σ = 137401920. Its totient is φ = 125099520.

The previous prime is 131153083. The next prime is 131153119. The reversal of 131153111 is 111351131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131153111 - 218 = 130890967 is a prime.

It is a super-2 number, since 2×1311531112 = 34402277049956642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131153111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131153119) 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 15 ways as a sum of consecutive naturals, for example, 365150 + ... + 365508.

It is an arithmetic number, because the mean of its divisors is an integer number (8587620).

Almost surely, 2131153111 is an apocalyptic number.

131153111 is a deficient number, since it is larger than the sum of its proper divisors (6248809).

131153111 is a wasteful number, since it uses less digits than its factorization.

131153111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586.

The product of its digits is 45, while the sum is 17.

The square root of 131153111 is about 11452.2098740811. The cubic root of 131153111 is about 508.0730966694.

The spelling of 131153111 in words is "one hundred thirty-one million, one hundred fifty-three thousand, one hundred eleven".

Divisors: 1 53 61 113 359 3233 5989 6893 19027 21899 40567 365329 1160647 2150051 2474587 131153111