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13253015321 = 713225743591
BaseRepresentation
bin11000101011111000…
…01111011100011001
31021012121212221020022
430111330033130121
5204120232442241
610031030040225
7646264525430
oct142574173431
937177787208
1013253015321
115690a88627
12269a4a9075
13133292ba00
148da1cc117
1552877e54b
hex315f0f719

13253015321 has 24 divisors (see below), whose sum is σ = 16465221504. Its totient is φ = 10444861440.

The previous prime is 13253015309. The next prime is 13253015323. The reversal of 13253015321 is 12351035231.

It is not a de Polignac number, because 13253015321 - 26 = 13253015257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13253015323) 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 23 ways as a sum of consecutive naturals, for example, 282236 + ... + 325826.

It is an arithmetic number, because the mean of its divisors is an integer number (686050896).

Almost surely, 213253015321 is an apocalyptic number.

It is an amenable number.

13253015321 is a deficient number, since it is larger than the sum of its proper divisors (3212206183).

13253015321 is a wasteful number, since it uses less digits than its factorization.

13253015321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43881 (or 43868 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 13253015321 in words is "thirteen billion, two hundred fifty-three million, fifteen thousand, three hundred twenty-one".

Divisors: 1 7 13 91 169 257 1183 1799 3341 23387 43433 43591 304031 305137 566683 3966781 7366879 11202887 51568153 78420209 145637531 1019462717 1893287903 13253015321