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131356037 = 407932203
BaseRepresentation
bin1111101010001…
…01010110000101
3100011011120121102
413311011112011
5232111343122
621011225445
73153336131
oct765052605
9304146542
10131356037
116816880a
1237ba8285
13212a1a87
14136343c1
15b7ea492
hex7d45585

131356037 has 4 divisors (see below), whose sum is σ = 131392320. Its totient is φ = 131319756.

The previous prime is 131356019. The next prime is 131356039. The reversal of 131356037 is 730653131.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2k-131356037 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 (131356039) 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, 12023 + ... + 20180.

It is an arithmetic number, because the mean of its divisors is an integer number (32848080).

Almost surely, 2131356037 is an apocalyptic number.

It is an amenable number.

131356037 is a deficient number, since it is larger than the sum of its proper divisors (36283).

131356037 is an equidigital number, since it uses as much as digits as its factorization.

131356037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36282.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 131356037 is about 11461.0661371445. The cubic root of 131356037 is about 508.3349994989.

The spelling of 131356037 in words is "one hundred thirty-one million, three hundred fifty-six thousand, thirty-seven".

Divisors: 1 4079 32203 131356037