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131095924 = 2253618377
BaseRepresentation
bin1111101000001…
…01110101110100
3100010200100210121
413310011311310
5232030032144
621001501324
73151203601
oct764056564
9303610717
10131095924
1168000343
1237aa1844
132121056b
14135a76a8
15b798384
hex7d05d74

131095924 has 12 divisors (see below), whose sum is σ = 233746884. Its totient is φ = 64311104.

The previous prime is 131095919. The next prime is 131095961. The reversal of 131095924 is 429590131.

It can be written as a sum of positive squares in 2 ways, for example, as 115175824 + 15920100 = 10732^2 + 3990^2 .

It is a super-2 number, since 2×1310959242 = 34372282578827552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131095924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308977 + ... + 309400.

It is an arithmetic number, because the mean of its divisors is an integer number (19478907).

Almost surely, 2131095924 is an apocalyptic number.

It is an amenable number.

131095924 is a deficient number, since it is larger than the sum of its proper divisors (102650960).

131095924 is a wasteful number, since it uses less digits than its factorization.

131095924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618434 (or 618432 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 131095924 is about 11449.7128348269. The cubic root of 131095924 is about 507.9992404973. Note that the first 3 decimals are identical.

The spelling of 131095924 in words is "one hundred thirty-one million, ninety-five thousand, nine hundred twenty-four".

Divisors: 1 2 4 53 106 212 618377 1236754 2473508 32773981 65547962 131095924