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13012806052 = 2215527209519
BaseRepresentation
bin11000001111001111…
…11010100110100100
31020120212220001001201
430013213322212210
5203122234243202
65551125332244
7640320012031
oct140747724644
936525801051
1013012806052
115578431874
122631b67084
1312c4c3684c
148b6340388
15512631387
hex3079fa9a4

13012806052 has 12 divisors (see below), whose sum is σ = 22773985920. Its totient is φ = 6505952936.

The previous prime is 13012806031. The next prime is 13012806073. The reversal of 13012806052 is 25060821031.

It is an interprime number because it is at equal distance from previous prime (13012806031) and next prime (13012806073).

It is a self number, because there is not a number n which added to its sum of digits gives 13012806052.

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, 42652 + ... + 166867.

It is an arithmetic number, because the mean of its divisors is an integer number (1897832160).

Almost surely, 213012806052 is an apocalyptic number.

It is an amenable number.

13012806052 is a deficient number, since it is larger than the sum of its proper divisors (9761179868).

13012806052 is a wasteful number, since it uses less digits than its factorization.

13012806052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225050 (or 225048 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 13012806052 in words is "thirteen billion, twelve million, eight hundred six thousand, fifty-two".

Divisors: 1 2 4 15527 31054 62108 209519 419038 838076 3253201513 6506403026 13012806052