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56825280 = 263356577
BaseRepresentation
bin1101100011000…
…1010111000000
310221221000122000
43120301113000
5104021402110
65345544000
71260002241
oct330612700
9127830560
1056825280
112a092746
1217045000
13ba07c35
147792cc8
154ec71c0
hex36315c0

56825280 has 112 divisors (see below), whose sum is σ = 200497440. Its totient is φ = 15151104.

The previous prime is 56825267. The next prime is 56825287. The reversal of 56825280 is 8252865.

56825280 is a `hidden beast` number, since 56 + 82 + 528 + 0 = 666.

It is a super-2 number, since 2×568252802 = 6458224894156800, which contains 22 as substring.

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 (56825287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5352 + ... + 11928.

Almost surely, 256825280 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 56825280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100248720).

56825280 is an abundant number, since it is smaller than the sum of its proper divisors (143672160).

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

56825280 is a wasteful number, since it uses less digits than its factorization.

56825280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6603 (or 6587 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 56825280 is about 7538.2544398554. The cubic root of 56825280 is about 384.4564883745.

The spelling of 56825280 in words is "fifty-six million, eight hundred twenty-five thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 135 144 160 180 192 216 240 270 288 320 360 432 480 540 576 720 864 960 1080 1440 1728 2160 2880 4320 6577 8640 13154 19731 26308 32885 39462 52616 59193 65770 78924 98655 105232 118386 131540 157848 177579 197310 210464 236772 263080 295965 315696 355158 394620 420928 473544 526160 591930 631392 710316 789240 887895 947088 1052320 1183860 1262784 1420632 1578480 1775790 1894176 2104640 2367720 2841264 3156960 3551580 3788352 4735440 5682528 6313920 7103160 9470880 11365056 14206320 18941760 28412640 56825280