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131376525817 = 863407937321
BaseRepresentation
bin111101001011010100…
…1101011000111111001
3110120002212010000001111
41322112221223013321
54123024342311232
6140204210520321
712330430021105
oct1722651530771
9416085100044
10131376525817
1150797695379
12215658960a1
13c509124754
14650422a905
15363db1d047
hex1e96a6b1f9

131376525817 has 8 divisors (see below), whose sum is σ = 131564528640. Its totient is φ = 131188607520.

The previous prime is 131376525811. The next prime is 131376525871. The reversal of 131376525817 is 718525673131.

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

It is a cyclic number.

It is not a de Polignac number, because 131376525817 - 215 = 131376493049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131376525811) 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, 3501517 + ... + 3538837.

It is an arithmetic number, because the mean of its divisors is an integer number (16445566080).

Almost surely, 2131376525817 is an apocalyptic number.

It is an amenable number.

131376525817 is a deficient number, since it is larger than the sum of its proper divisors (188002823).

131376525817 is an equidigital number, since it uses as much as digits as its factorization.

131376525817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42263.

The product of its digits is 1058400, while the sum is 49.

The spelling of 131376525817 in words is "one hundred thirty-one billion, three hundred seventy-six million, five hundred twenty-five thousand, eight hundred seventeen".

Divisors: 1 863 4079 37321 3520177 32208023 152232359 131376525817