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56167920 = 24325181431
BaseRepresentation
bin1101011001000…
…0110111110000
310220200121220100
43112100313300
5103334333140
65323512400
71251263604
oct326206760
9126617810
1056167920
1129783876
1216988700
13b837973
147661504
154de7530
hex3590df0

56167920 has 120 divisors (see below), whose sum is σ = 190112832. Its totient is φ = 14860800.

The previous prime is 56167913. The next prime is 56167927. The reversal of 56167920 is 2976165.

56167920 is a `hidden beast` number, since 561 + 6 + 7 + 92 + 0 = 666.

56167920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56167913) and next prime (56167927).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56167927) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 130105 + ... + 130535.

Almost surely, 256167920 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 56167920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95056416).

56167920 is an abundant number, since it is smaller than the sum of its proper divisors (133944912).

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

56167920 is a wasteful number, since it uses less digits than its factorization.

56167920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 56167920 is about 7494.5260023567. The cubic root of 56167920 is about 382.9682590206.

The spelling of 56167920 in words is "fifty-six million, one hundred sixty-seven thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 181 240 360 362 431 543 720 724 862 905 1086 1293 1448 1629 1724 1810 2155 2172 2586 2715 2896 3258 3448 3620 3879 4310 4344 5172 5430 6465 6516 6896 7240 7758 8145 8620 8688 10344 10860 12930 13032 14480 15516 16290 17240 19395 20688 21720 25860 26064 31032 32580 34480 38790 43440 51720 62064 65160 77580 78011 103440 130320 155160 156022 234033 310320 312044 390055 468066 624088 702099 780110 936132 1170165 1248176 1404198 1560220 1872264 2340330 2808396 3120440 3510495 3744528 4680660 5616792 6240880 7020990 9361320 11233584 14041980 18722640 28083960 56167920