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131750613 = 3214638957
BaseRepresentation
bin1111101101001…
…01101011010101
3100011220121212100
413312211223111
5232212004423
621023512313
73156601401
oct766455325
9304817770
10131750613
1168408205
1238158699
13213ac557
14136d8101
15b877343
hex7da5ad5

131750613 has 6 divisors (see below), whose sum is σ = 190306454. Its totient is φ = 87833736.

The previous prime is 131750611. The next prime is 131750627. The reversal of 131750613 is 316057131.

It can be written as a sum of positive squares in only one way, i.e., 108305649 + 23444964 = 10407^2 + 4842^2 .

It is not a de Polignac number, because 131750613 - 21 = 131750611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131750611) 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 5 ways as a sum of consecutive naturals, for example, 7319470 + ... + 7319487.

Almost surely, 2131750613 is an apocalyptic number.

It is an amenable number.

131750613 is a deficient number, since it is larger than the sum of its proper divisors (58555841).

131750613 is a wasteful number, since it uses less digits than its factorization.

131750613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14638963 (or 14638960 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 131750613 is about 11478.2669859173. The cubic root of 131750613 is about 508.8434808612.

The spelling of 131750613 in words is "one hundred thirty-one million, seven hundred fifty thousand, six hundred thirteen".

Divisors: 1 3 9 14638957 43916871 131750613