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13056620 = 225652831
BaseRepresentation
bin110001110011…
…101001101100
3220120100022112
4301303221230
511320302440
61143503152
7215656643
oct61635154
926510275
1013056620
1174086a5
124457ab8
132921c15
141a3c35a
15122d965
hexc73a6c

13056620 has 12 divisors (see below), whose sum is σ = 27418944. Its totient is φ = 5222640.

The previous prime is 13056619. The next prime is 13056653. The reversal of 13056620 is 2665031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326396 + ... + 326435.

It is an arithmetic number, because the mean of its divisors is an integer number (2284912).

Almost surely, 213056620 is an apocalyptic number.

13056620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13056620 is an abundant number, since it is smaller than the sum of its proper divisors (14362324).

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

13056620 is a wasteful number, since it uses less digits than its factorization.

13056620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652840 (or 652838 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 13056620 is about 3613.3945259271. The cubic root of 13056620 is about 235.4743399391.

The spelling of 13056620 in words is "thirteen million, fifty-six thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 652831 1305662 2611324 3264155 6528310 13056620