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13015394769 = 3131737951797
BaseRepresentation
bin11000001111100011…
…10010100111010001
31020121001202120010010
430013301302213101
5203123420113034
65551301025133
7640351013226
oct140761624721
936531676103
1013015394769
11557993a803
1226329b51a9
1312c5631c30
148b681594d
155129933e9
hex307c729d1

13015394769 has 32 divisors (see below), whose sum is σ = 19840705920. Its totient is φ = 7518292992.

The previous prime is 13015394713. The next prime is 13015394779. The reversal of 13015394769 is 96749351031.

13015394769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13015394769 - 215 = 13015362001 is a prime.

It is a super-2 number, since 2×130153947692 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13015394779) 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 31 ways as a sum of consecutive naturals, for example, 225379 + ... + 277175.

It is an arithmetic number, because the mean of its divisors is an integer number (620022060).

Almost surely, 213015394769 is an apocalyptic number.

It is an amenable number.

13015394769 is a deficient number, since it is larger than the sum of its proper divisors (6825311151).

13015394769 is a wasteful number, since it uses less digits than its factorization.

13015394769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52209.

The product of its (nonzero) digits is 612360, while the sum is 48.

The spelling of 13015394769 in words is "thirteen billion, fifteen million, three hundred ninety-four thousand, seven hundred sixty-nine".

Divisors: 1 3 13 17 39 51 221 379 663 1137 4927 6443 14781 19329 51797 83759 155391 251277 673361 880549 2020083 2641647 11447137 19631063 34341411 58893189 255203819 333728071 765611457 1001184213 4338464923 13015394769