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56012385 = 35111326113
BaseRepresentation
bin1101010110101…
…0111001100001
310220101201112210
43111222321201
5103314344020
65320312333
71250045262
oct325527141
9126351483
1056012385
1129687a30
12169126a9
13b7b1c30
147620969
154db63e0
hex356ae61

56012385 has 32 divisors (see below), whose sum is σ = 105291648. Its totient is φ = 25067520.

The previous prime is 56012371. The next prime is 56012423. The reversal of 56012385 is 58321065.

It is not a de Polignac number, because 56012385 - 26 = 56012321 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10912 + ... + 15201.

It is an arithmetic number, because the mean of its divisors is an integer number (3290364).

Almost surely, 256012385 is an apocalyptic number.

56012385 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56012385 is a deficient number, since it is larger than the sum of its proper divisors (49279263).

56012385 is a wasteful number, since it uses less digits than its factorization.

56012385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26145.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 56012385 is about 7484.1422354202. The cubic root of 56012385 is about 382.6144388240.

The spelling of 56012385 in words is "fifty-six million, twelve thousand, three hundred eighty-five".

Divisors: 1 3 5 11 13 15 33 39 55 65 143 165 195 429 715 2145 26113 78339 130565 287243 339469 391695 861729 1018407 1436215 1697345 3734159 4308645 5092035 11202477 18670795 56012385