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131132536 = 2317991573
BaseRepresentation
bin1111101000011…
…10110001111000
3100010202020000121
413310032301320
5232032220121
621002343024
73151415413
oct764166170
9303666017
10131132536
11680258a7
1237abaa74
1321224122
14135b6b7a
15b7a4141
hex7d0ec78

131132536 has 16 divisors (see below), whose sum is σ = 247249800. Its totient is φ = 65199264.

The previous prime is 131132501. The next prime is 131132537. The reversal of 131132536 is 635231131.

It is a self number, because there is not a number n which added to its sum of digits gives 131132536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131132537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44355 + ... + 47218.

Almost surely, 2131132536 is an apocalyptic number.

It is an amenable number.

131132536 is a deficient number, since it is larger than the sum of its proper divisors (116117264).

131132536 is a wasteful number, since it uses less digits than its factorization.

131132536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91758 (or 91754 counting only the distinct ones).

The product of its digits is 1620, while the sum is 25.

The square root of 131132536 is about 11451.3115406053. The cubic root of 131132536 is about 508.0465268316.

Adding to 131132536 its reverse (635231131), we get a palindrome (766363667).

The spelling of 131132536 in words is "one hundred thirty-one million, one hundred thirty-two thousand, five hundred thirty-six".

Divisors: 1 2 4 8 179 358 716 1432 91573 183146 366292 732584 16391567 32783134 65566268 131132536