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13568080 = 245315471
BaseRepresentation
bin110011110000…
…100001010000
3221112022220111
4303300201100
511433134310
61202451104
7223220041
oct63604120
927468814
1013568080
117727999
124663a94
132a70966
141b328c8
1512d028a
hexcf0850

13568080 has 40 divisors (see below), whose sum is σ = 32569344. Its totient is φ = 5251200.

The previous prime is 13568041. The next prime is 13568081. The reversal of 13568080 is 8086531.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13568081) 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, 256 + ... + 5215.

Almost surely, 213568080 is an apocalyptic number.

13568080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13568080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16284672).

13568080 is an abundant number, since it is smaller than the sum of its proper divisors (19001264).

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

13568080 is a wasteful number, since it uses less digits than its factorization.

13568080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5515 (or 5509 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 13568080 is about 3683.4874779209. The cubic root of 13568080 is about 238.5097470771.

The spelling of 13568080 in words is "thirteen million, five hundred sixty-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 1240 2480 5471 10942 21884 27355 43768 54710 87536 109420 169601 218840 339202 437680 678404 848005 1356808 1696010 2713616 3392020 6784040 13568080