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56233143 = 332082709
BaseRepresentation
bin1101011010000…
…0110010110111
310220210221101000
43112200302313
5103343430033
65325134343
71251655011
oct326406267
9126727330
1056233143
112981887a
12169ba3b3
13b85b565
14767b1b1
154e0ba13
hex35a0cb7

56233143 has 8 divisors (see below), whose sum is σ = 83308400. Its totient is φ = 37488744.

The previous prime is 56233109. The next prime is 56233147. The reversal of 56233143 is 34133265.

It is a happy number.

56233143 is a `hidden beast` number, since 5 + 623 + 31 + 4 + 3 = 666.

It is not a de Polignac number, because 56233143 - 214 = 56216759 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2082709 = 56233143 / (5 + 6 + 2 + 3 + 3 + 1 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56233147) 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, 1041328 + ... + 1041381.

It is an arithmetic number, because the mean of its divisors is an integer number (10413550).

Almost surely, 256233143 is an apocalyptic number.

56233143 is a deficient number, since it is larger than the sum of its proper divisors (27075257).

56233143 is a wasteful number, since it uses less digits than its factorization.

56233143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082718 (or 2082712 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 56233143 is about 7498.8761157923. The cubic root of 56233143 is about 383.1164377710.

The spelling of 56233143 in words is "fifty-six million, two hundred thirty-three thousand, one hundred forty-three".

Divisors: 1 3 9 27 2082709 6248127 18744381 56233143