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13515250052 = 227523449131
BaseRepresentation
bin11001001011001001…
…00101100110000100
31021212220022211122202
430211210211212010
5210134401000202
610113034414032
7655630505243
oct144544454604
937786284582
1013515250052
115806008447
122752291318
1313750661a5
14922d7095a
155417cd802
hex325925984

13515250052 has 12 divisors (see below), whose sum is σ = 23654884176. Its totient is φ = 6756711720.

The previous prime is 13515250043. The next prime is 13515250081. The reversal of 13515250052 is 25005251531.

It is a junction number, because it is equal to n+sod(n) for n = 13515249997 and 13515250024.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194474 + ... + 254657.

It is an arithmetic number, because the mean of its divisors is an integer number (1971240348).

Almost surely, 213515250052 is an apocalyptic number.

It is an amenable number.

13515250052 is a deficient number, since it is larger than the sum of its proper divisors (10139634124).

13515250052 is a wasteful number, since it uses less digits than its factorization.

13515250052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456658 (or 456656 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 13515250052 in words is "thirteen billion, five hundred fifteen million, two hundred fifty thousand, fifty-two".

Divisors: 1 2 4 7523 15046 30092 449131 898262 1796524 3378812513 6757625026 13515250052