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56885585 = 5181239263
BaseRepresentation
bin1101100100000…
…0000101010001
310222001002100112
43121000011101
5104030314320
65351131105
71260343121
oct331000521
9128032315
1056885585
112a123a89
1217073a95
13ba29513
1477aac81
154ed9ec5
hex3640151

56885585 has 16 divisors (see below), whose sum is σ = 69189120. Its totient is φ = 44896320.

The previous prime is 56885581. The next prime is 56885593. The reversal of 56885585 is 58558865.

It is not a de Polignac number, because 56885585 - 22 = 56885581 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56885581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216164 + ... + 216426.

It is an arithmetic number, because the mean of its divisors is an integer number (4324320).

Almost surely, 256885585 is an apocalyptic number.

It is an amenable number.

56885585 is a deficient number, since it is larger than the sum of its proper divisors (12303535).

56885585 is a wasteful number, since it uses less digits than its factorization.

56885585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688.

The product of its digits is 1920000, while the sum is 50.

The square root of 56885585 is about 7542.2533105167. The cubic root of 56885585 is about 384.5924399082.

The spelling of 56885585 in words is "fifty-six million, eight hundred eighty-five thousand, five hundred eighty-five".

Divisors: 1 5 181 239 263 905 1195 1315 43259 47603 62857 216295 238015 314285 11377117 56885585