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56223869 = 1319227627
BaseRepresentation
bin1101011001111…
…0100001111101
310220210110122112
43112132201331
5103343130434
65325023405
71251615662
oct326364175
9126713575
1056223869
1129811909
12169b4b65
13b857280
147677a69
154e08dce
hex359e87d

56223869 has 8 divisors (see below), whose sum is σ = 63735840. Its totient is φ = 49167216.

The previous prime is 56223857. The next prime is 56223887. The reversal of 56223869 is 96832265.

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 56223869 - 224 = 39446653 is a prime.

It is a super-2 number, since 2×562238692 = 6322246890658322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56223269) 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, 113567 + ... + 114060.

It is an arithmetic number, because the mean of its divisors is an integer number (7966980).

Almost surely, 256223869 is an apocalyptic number.

It is an amenable number.

56223869 is a deficient number, since it is larger than the sum of its proper divisors (7511971).

56223869 is a wasteful number, since it uses less digits than its factorization.

56223869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227659.

The product of its digits is 155520, while the sum is 41.

The square root of 56223869 is about 7498.2577309666. The cubic root of 56223869 is about 383.0953753572.

The spelling of 56223869 in words is "fifty-six million, two hundred twenty-three thousand, eight hundred sixty-nine".

Divisors: 1 13 19 247 227627 2959151 4324913 56223869