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130960479 = 31327112391
BaseRepresentation
bin1111100111001…
…00110001011111
3100010102111000010
413303210301133
5232011213404
620554534303
73150100656
oct763446137
9303374003
10130960479
1167a18601
1237a37393
1321193a10
141357019d
15b76d189
hex7ce4c5f

130960479 has 16 divisors (see below), whose sum is σ = 188754944. Its totient is φ = 80287200.

The previous prime is 130960477. The next prime is 130960493. The reversal of 130960479 is 974069031.

It is not a de Polignac number, because 130960479 - 21 = 130960477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130960477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4374 + ... + 16764.

It is an arithmetic number, because the mean of its divisors is an integer number (11797184).

Almost surely, 2130960479 is an apocalyptic number.

130960479 is a deficient number, since it is larger than the sum of its proper divisors (57794465).

130960479 is a wasteful number, since it uses less digits than its factorization.

130960479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12678.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 130960479 is about 11443.7965291244. The cubic root of 130960479 is about 507.8242295465.

The spelling of 130960479 in words is "one hundred thirty million, nine hundred sixty thousand, four hundred seventy-nine".

Divisors: 1 3 13 39 271 813 3523 10569 12391 37173 161083 483249 3357961 10073883 43653493 130960479