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131550513 = 385351407
BaseRepresentation
bin1111101011101…
…00110100110001
3100011112110101020
413311310310301
5232134104023
621015330053
73155106123
oct765646461
9304473336
10131550513
1168290936
1238080929
132133c453
1413685213
15b837de3
hex7d74d31

131550513 has 8 divisors (see below), whose sum is σ = 175609728. Its totient is φ = 87595824.

The previous prime is 131550491. The next prime is 131550553. The reversal of 131550513 is 315055131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131550513 - 25 = 131550481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131550553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23145 + ... + 28262.

It is an arithmetic number, because the mean of its divisors is an integer number (21951216).

Almost surely, 2131550513 is an apocalyptic number.

It is an amenable number.

131550513 is a deficient number, since it is larger than the sum of its proper divisors (44059215).

131550513 is an equidigital number, since it uses as much as digits as its factorization.

131550513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52263.

The product of its (nonzero) digits is 1125, while the sum is 24.

The square root of 131550513 is about 11469.5472011758. The cubic root of 131550513 is about 508.5857434869.

The spelling of 131550513 in words is "one hundred thirty-one million, five hundred fifty thousand, five hundred thirteen".

Divisors: 1 3 853 2559 51407 154221 43850171 131550513