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131327725 = 525253109
BaseRepresentation
bin1111101001111…
…10011011101101
3100011010010202211
413310332123231
5232104441400
621010450421
73153160444
oct764763355
9304103684
10131327725
1168149511
1237b93a11
1321291c19
1413627d5b
15b7e1dba
hex7d3e6ed

131327725 has 6 divisors (see below), whose sum is σ = 162846410. Its totient is φ = 105062160.

The previous prime is 131327717. The next prime is 131327731. The reversal of 131327725 is 527723131.

It can be written as a sum of positive squares in 3 ways, for example, as 19044 + 131308681 = 138^2 + 11459^2 .

It is not a de Polignac number, because 131327725 - 23 = 131327717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2626530 + ... + 2626579.

Almost surely, 2131327725 is an apocalyptic number.

It is an amenable number.

131327725 is a deficient number, since it is larger than the sum of its proper divisors (31518685).

131327725 is an equidigital number, since it uses as much as digits as its factorization.

131327725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253119 (or 5253114 counting only the distinct ones).

The product of its digits is 8820, while the sum is 31.

The square root of 131327725 is about 11459.8309324353. The cubic root of 131327725 is about 508.2984753188.

The spelling of 131327725 in words is "one hundred thirty-one million, three hundred twenty-seven thousand, seven hundred twenty-five".

Divisors: 1 5 25 5253109 26265545 131327725