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13047112 = 2313125453
BaseRepresentation
bin110001110001…
…010101001000
3220112212021101
4301301111020
511320001422
61143351144
7215620141
oct61612510
926485241
1013047112
117401541
1244524b4
13291a7b0
141a38ac8
15122ac27
hexc71548

13047112 has 16 divisors (see below), whose sum is σ = 26345340. Its totient is φ = 6021696.

The previous prime is 13047101. The next prime is 13047121. The reversal of 13047112 is 21174031.

It can be written as a sum of positive squares in 2 ways, for example, as 12152196 + 894916 = 3486^2 + 946^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13047112.

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, 62623 + ... + 62830.

Almost surely, 213047112 is an apocalyptic number.

It is an amenable number.

13047112 is an abundant number, since it is smaller than the sum of its proper divisors (13298228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13047112 is a wasteful number, since it uses less digits than its factorization.

13047112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125472 (or 125468 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 13047112 is about 3612.0786259438. The cubic root of 13047112 is about 235.4171675697.

The spelling of 13047112 in words is "thirteen million, forty-seven thousand, one hundred twelve".

Divisors: 1 2 4 8 13 26 52 104 125453 250906 501812 1003624 1630889 3261778 6523556 13047112