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13056512 = 2973643
BaseRepresentation
bin110001110011…
…101000000000
3220120100011112
4301303220000
511320302022
61143502452
7215656430
oct61635000
926510145
1013056512
117408607
124457a28
132921b61
141a3c2c0
15122d8e2
hexc73a00

13056512 has 40 divisors (see below), whose sum is σ = 29822496. Its totient is φ = 5594112.

The previous prime is 13056499. The next prime is 13056541. The reversal of 13056512 is 21565031.

It is a super-2 number, since 2×130565122 = 340945011212288, which contains 22 as substring.

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, 1763 + ... + 5405.

Almost surely, 213056512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13056512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14911248).

13056512 is an abundant number, since it is smaller than the sum of its proper divisors (16765984).

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

13056512 is an frugal number, since it uses more digits than its factorization.

13056512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3668 (or 3652 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 13056512 is about 3613.3795814998. The cubic root of 13056512 is about 235.4736906823.

The spelling of 13056512 in words is "thirteen million, fifty-six thousand, five hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 512 896 1792 3584 3643 7286 14572 25501 29144 51002 58288 102004 116576 204008 233152 408016 466304 816032 932608 1632064 1865216 3264128 6528256 13056512