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56078320 = 245591092
BaseRepresentation
bin1101010111101…
…0111111110000
310220112001222211
43111322333300
5103324001240
65321541504
71250441434
oct325727760
9126461884
1056078320
1129722521
1216944894
13b805c4c
14763a9c4
154dcabea
hex357aff0

56078320 has 60 divisors (see below), whose sum is σ = 133819560. Its totient is φ = 21848832.

The previous prime is 56078317. The next prime is 56078333. The reversal of 56078320 is 2387065.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 514426 + ... + 514534.

It is an arithmetic number, because the mean of its divisors is an integer number (2230326).

Almost surely, 256078320 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 56078320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66909780).

56078320 is an abundant number, since it is smaller than the sum of its proper divisors (77741240).

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

56078320 is a wasteful number, since it uses less digits than its factorization.

56078320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 175 counting only the distinct ones).

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

The square root of 56078320 is about 7488.5459202705. The cubic root of 56078320 is about 382.7645115300.

The spelling of 56078320 in words is "fifty-six million, seventy-eight thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 59 80 109 118 218 236 295 436 472 545 590 872 944 1090 1180 1744 2180 2360 4360 4720 6431 8720 11881 12862 23762 25724 32155 47524 51448 59405 64310 95048 102896 118810 128620 190096 237620 257240 475240 514480 700979 950480 1401958 2803916 3504895 5607832 7009790 11215664 14019580 28039160 56078320