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56724160 = 2651031721
BaseRepresentation
bin1101100001100…
…0101011000000
310221201212220211
43120120223000
5104010133120
65343443504
71256101363
oct330305300
9127655824
1056724160
112a023779
1216bb6594
13b9a0bbc
1477680da
154ea725a
hex3618ac0

56724160 has 56 divisors (see below), whose sum is σ = 136465056. Its totient is φ = 22456320.

The previous prime is 56724149. The next prime is 56724167. The reversal of 56724160 is 6142765.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (56724167) 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, 32100 + ... + 33820.

It is an arithmetic number, because the mean of its divisors is an integer number (2436876).

Almost surely, 256724160 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 56724160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68232528).

56724160 is an abundant number, since it is smaller than the sum of its proper divisors (79740896).

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

56724160 is a wasteful number, since it uses less digits than its factorization.

56724160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841 (or 1831 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 56724160 is about 7531.5443303482. The cubic root of 56724160 is about 384.2283075197.

The spelling of 56724160 in words is "fifty-six million, seven hundred twenty-four thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 103 160 206 320 412 515 824 1030 1648 1721 2060 3296 3442 4120 6592 6884 8240 8605 13768 16480 17210 27536 32960 34420 55072 68840 110144 137680 177263 275360 354526 550720 709052 886315 1418104 1772630 2836208 3545260 5672416 7090520 11344832 14181040 28362080 56724160