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56444688 = 243497449
BaseRepresentation
bin1101011101010…
…0011100010000
310221012200120000
43113110130100
5103422212223
65333450000
71253525526
oct327243420
9127180500
1056444688
1129952803
1216aa0900
13b903931
1476d4316
154e4e543
hex35d4710

56444688 has 100 divisors (see below), whose sum is σ = 165419100. Its totient is φ = 18579456.

The previous prime is 56444683. The next prime is 56444711. The reversal of 56444688 is 88644465.

56444688 is a `hidden beast` number, since 564 + 4 + 4 + 6 + 88 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29942784 + 26501904 = 5472^2 + 5148^2 .

It is not an unprimeable number, because it can be changed into a prime (56444683) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 125488 + ... + 125936.

It is an arithmetic number, because the mean of its divisors is an integer number (1654191).

Almost surely, 256444688 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 56444688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82709550).

56444688 is an abundant number, since it is smaller than the sum of its proper divisors (108974412).

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

56444688 is a wasteful number, since it uses less digits than its factorization.

56444688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 551 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 56444688 is about 7512.9679887512. The cubic root of 56444688 is about 383.5962553317.

The spelling of 56444688 in words is "fifty-six million, four hundred forty-four thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 97 108 144 162 194 216 291 324 388 432 449 582 648 776 873 898 1164 1296 1347 1552 1746 1796 2328 2619 2694 3492 3592 4041 4656 5238 5388 6984 7184 7857 8082 10476 10776 12123 13968 15714 16164 20952 21552 24246 31428 32328 36369 41904 43553 48492 62856 64656 72738 87106 96984 125712 130659 145476 174212 193968 261318 290952 348424 391977 522636 581904 696848 783954 1045272 1175931 1567908 2090544 2351862 3135816 3527793 4703724 6271632 7055586 9407448 14111172 18814896 28222344 56444688