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131375007625 = 531761823533
BaseRepresentation
bin111101001011010001…
…1111000011110001001
3110120002202020212111011
41322112203320132021
54123024000221000
6140204114203521
712330411065641
oct1722643703611
9416082225434
10131375007625
1150796848774
12215652835a1
13c508a12704
146503d53521
15363d91d2ba
hex1e968f8789

131375007625 has 16 divisors (see below), whose sum is σ = 173600483472. Its totient is φ = 98917651200.

The previous prime is 131375007607. The next prime is 131375007677. The reversal of 131375007625 is 526700573131.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 67493961616 + 63881046009 = 259796^2 + 252747^2 .

It is not a de Polignac number, because 131375007625 - 25 = 131375007593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30909642 + ... + 30913891.

It is an arithmetic number, because the mean of its divisors is an integer number (10850030217).

Almost surely, 2131375007625 is an apocalyptic number.

It is an amenable number.

131375007625 is a deficient number, since it is larger than the sum of its proper divisors (42225475847).

131375007625 is an equidigital number, since it uses as much as digits as its factorization.

131375007625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61823565 (or 61823555 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 40.

The spelling of 131375007625 in words is "one hundred thirty-one billion, three hundred seventy-five million, seven thousand, six hundred twenty-five".

Divisors: 1 5 17 25 85 125 425 2125 61823533 309117665 1051000061 1545588325 5255000305 7727941625 26275001525 131375007625