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13131310304 = 25758621921
BaseRepresentation
bin11000011101010111…
…11110010011100000
31020220010212200100002
430032223332103200
5203343103412204
610011001315132
7643256203340
oct141653762340
936803780302
1013131310304
115629311872
122665795aa8
1313136589c8
148c7d8ad20
1551cc3d91e
hex30eafe4e0

13131310304 has 24 divisors (see below), whose sum is σ = 29545448688. Its totient is φ = 5627704320.

The previous prime is 13131310303. The next prime is 13131310327. The reversal of 13131310304 is 40301313131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131310303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29310737 + ... + 29311184.

It is an arithmetic number, because the mean of its divisors is an integer number (1231060362).

Almost surely, 213131310304 is an apocalyptic number.

13131310304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13131310304 is an abundant number, since it is smaller than the sum of its proper divisors (16414138384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13131310304 is an equidigital number, since it uses as much as digits as its factorization.

13131310304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58621938 (or 58621930 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13131310304 its reverse (40301313131), we get a palindrome (53432623435).

The spelling of 13131310304 in words is "thirteen billion, one hundred thirty-one million, three hundred ten thousand, three hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 58621921 117243842 234487684 410353447 468975368 820706894 937950736 1641413788 1875901472 3282827576 6565655152 13131310304