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13015256005 = 53597250839
BaseRepresentation
bin11000001111100010…
…10000101111000101
31020121001111111202201
430013301100233011
5203123401143010
65551254034501
7640346564533
oct140761205705
936531444681
1013015256005
115579855524
122632948a31
1312c55b3a1b
148b67bb153
1551296723a
hex307c50bc5

13015256005 has 8 divisors (see below), whose sum is σ = 15661814400. Its totient is φ = 10383200016.

The previous prime is 13015256003. The next prime is 13015256011. The reversal of 13015256005 is 50065251031.

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

It is a cyclic number.

It is not a de Polignac number, because 13015256005 - 21 = 13015256003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13015256003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3623625 + ... + 3627214.

It is an arithmetic number, because the mean of its divisors is an integer number (1957726800).

Almost surely, 213015256005 is an apocalyptic number.

It is an amenable number.

13015256005 is a deficient number, since it is larger than the sum of its proper divisors (2646558395).

13015256005 is an equidigital number, since it uses as much as digits as its factorization.

13015256005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7251203.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 13015256005 in words is "thirteen billion, fifteen million, two hundred fifty-six thousand, five".

Divisors: 1 5 359 1795 7250839 36254195 2603051201 13015256005