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131713629 = 343904543
BaseRepresentation
bin1111101100111…
…00101001011101
3100011211202010120
413312130221131
5232204314004
621023025153
73156355515
oct766345135
9304752116
10131713629
1168392443
123813b1b9
1321398778
14136c8845
15b86b3d9
hex7d9ca5d

131713629 has 4 divisors (see below), whose sum is σ = 175618176. Its totient is φ = 87809084.

The previous prime is 131713559. The next prime is 131713657. The reversal of 131713629 is 926317131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131713629 - 29 = 131713117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131713629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131713669) 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 3 ways as a sum of consecutive naturals, for example, 21952269 + ... + 21952274.

It is an arithmetic number, because the mean of its divisors is an integer number (43904544).

Almost surely, 2131713629 is an apocalyptic number.

It is an amenable number.

131713629 is a deficient number, since it is larger than the sum of its proper divisors (43904547).

131713629 is an equidigital number, since it uses as much as digits as its factorization.

131713629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43904546.

The product of its digits is 6804, while the sum is 33.

The square root of 131713629 is about 11476.6558282454. The cubic root of 131713629 is about 508.7958635534.

The spelling of 131713629 in words is "one hundred thirty-one million, seven hundred thirteen thousand, six hundred twenty-nine".

Divisors: 1 3 43904543 131713629