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130727631 = 3429710141
BaseRepresentation
bin1111100101010…
…11111011001111
3100002222122121010
413302223323033
5231431241011
620545540303
73145111056
oct762537317
9302878533
10130727631
1167879671
1237944693
1321111a38
141350d39d
15b7241a6
hex7cabecf

130727631 has 8 divisors (see below), whose sum is σ = 174361264. Its totient is φ = 87122880.

The previous prime is 130727629. The next prime is 130727647. The reversal of 130727631 is 136727031.

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

It is not a de Polignac number, because 130727631 - 21 = 130727629 is a prime.

It is a super-2 number, since 2×1307276312 = 34179427013744322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130727731) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7821 + ... + 17961.

It is an arithmetic number, because the mean of its divisors is an integer number (21795158).

Almost surely, 2130727631 is an apocalyptic number.

130727631 is a deficient number, since it is larger than the sum of its proper divisors (43633633).

130727631 is a wasteful number, since it uses less digits than its factorization.

130727631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14441.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 130727631 is about 11433.6184561144. The cubic root of 130727631 is about 507.5230801543.

The spelling of 130727631 in words is "one hundred thirty million, seven hundred twenty-seven thousand, six hundred thirty-one".

Divisors: 1 3 4297 10141 12891 30423 43575877 130727631