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13006810844 = 2214771220141
BaseRepresentation
bin11000001110100010…
…00010111011011100
31020120110121110011222
430013101002323130
5203114220421334
65550353032512
7640215032216
oct140721027334
936513543158
1013006810844
115575007555
12262bb55738
1312c3917aa1
148b561d5b6
15511d49d2e
hex307442edc

13006810844 has 12 divisors (see below), whose sum is σ = 22763563368. Its totient is φ = 6502935600.

The previous prime is 13006810841. The next prime is 13006810897. The reversal of 13006810844 is 44801860031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13006810841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50987 + ... + 169154.

It is an arithmetic number, because the mean of its divisors is an integer number (1896963614).

Almost surely, 213006810844 is an apocalyptic number.

It is an amenable number.

13006810844 is a deficient number, since it is larger than the sum of its proper divisors (9756752524).

13006810844 is a wasteful number, since it uses less digits than its factorization.

13006810844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234916 (or 234914 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 13006810844 in words is "thirteen billion, six million, eight hundred ten thousand, eight hundred forty-four".

Divisors: 1 2 4 14771 29542 59084 220141 440282 880564 3251702711 6503405422 13006810844