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13056860 = 2254115923
BaseRepresentation
bin110001110011…
…101101011100
3220120100122102
4301303231130
511320304420
61143504232
7215660435
oct61635534
926510572
1013056860
1174088a3
124458078
13292206b
141a3c48c
15122da75
hexc73b5c

13056860 has 24 divisors (see below), whose sum is σ = 28089936. Its totient is φ = 5095040.

The previous prime is 13056839. The next prime is 13056863. The reversal of 13056860 is 6865031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13056863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7142 + ... + 8781.

It is an arithmetic number, because the mean of its divisors is an integer number (1170414).

Almost surely, 213056860 is an apocalyptic number.

13056860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13056860 is an abundant number, since it is smaller than the sum of its proper divisors (15033076).

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

13056860 is a wasteful number, since it uses less digits than its factorization.

13056860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15973 (or 15971 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 13056860 is about 3613.4277355442. The cubic root of 13056860 is about 235.4757827193.

The spelling of 13056860 in words is "thirteen million, fifty-six thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 15923 31846 63692 79615 159230 318460 652843 1305686 2611372 3264215 6528430 13056860