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56872444 = 2247302513
BaseRepresentation
bin1101100011110…
…0110111111100
310222000102022211
43120330313330
5104024404234
65350550204
71260256606
oct330746774
9128012284
1056872444
112a115122
1217068364
13ba23545
1477a6176
154ed6164
hex363cdfc

56872444 has 12 divisors (see below), whose sum is σ = 101644704. Its totient is φ = 27831104.

The previous prime is 56872427. The next prime is 56872447. The reversal of 56872444 is 44427865.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 56872397 and 56872406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56872447) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 151069 + ... + 151444.

It is an arithmetic number, because the mean of its divisors is an integer number (8470392).

Almost surely, 256872444 is an apocalyptic number.

It is an amenable number.

56872444 is a deficient number, since it is larger than the sum of its proper divisors (44772260).

56872444 is a wasteful number, since it uses less digits than its factorization.

56872444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302564 (or 302562 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 56872444 is about 7541.3821014453. The cubic root of 56872444 is about 384.5628230408.

The spelling of 56872444 in words is "fifty-six million, eight hundred seventy-two thousand, four hundred forty-four".

Divisors: 1 2 4 47 94 188 302513 605026 1210052 14218111 28436222 56872444