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56264287 = 318920393
BaseRepresentation
bin1101011010100…
…0011001011111
310220212112002111
43112220121133
5103400424122
65325534451
71252144552
oct326503137
9126775074
1056264287
112983a212
1216a14427
13b86c7a1
147688699
154e15d77
hex35a865f

56264287 has 8 divisors (see below), whose sum is σ = 58734720. Its totient is φ = 53834880.

The previous prime is 56264269. The next prime is 56264293. The reversal of 56264287 is 78246265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56264287 - 215 = 56231519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56264227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7438 + ... + 12955.

It is an arithmetic number, because the mean of its divisors is an integer number (7341840).

Almost surely, 256264287 is an apocalyptic number.

56264287 is a deficient number, since it is larger than the sum of its proper divisors (2470433).

56264287 is a wasteful number, since it uses less digits than its factorization.

56264287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20513.

The product of its digits is 161280, while the sum is 40.

The square root of 56264287 is about 7500.9524061948. The cubic root of 56264287 is about 383.1871527481.

The spelling of 56264287 in words is "fifty-six million, two hundred sixty-four thousand, two hundred eighty-seven".

Divisors: 1 31 89 2759 20393 632183 1814977 56264287