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56300143 = 139405037
BaseRepresentation
bin1101011011000…
…1001001101111
310220221100021111
43112301021233
5103403101033
65330412451
71252354234
oct326611157
9126840244
1056300143
1129864149
1216a31127
13b882bc3
14769778b
154e217cd
hex35b126f

56300143 has 4 divisors (see below), whose sum is σ = 56705320. Its totient is φ = 55894968.

The previous prime is 56300137. The next prime is 56300161. The reversal of 56300143 is 34100365.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56300143 is a prime.

It is a super-2 number, since 2×563001432 = 6339412203640898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56300183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202380 + ... + 202657.

It is an arithmetic number, because the mean of its divisors is an integer number (14176330).

Almost surely, 256300143 is an apocalyptic number.

56300143 is a deficient number, since it is larger than the sum of its proper divisors (405177).

56300143 is a wasteful number, since it uses less digits than its factorization.

56300143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405176.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 56300143 is about 7503.3421220147. The cubic root of 56300143 is about 383.2685343946.

The spelling of 56300143 in words is "fifty-six million, three hundred thousand, one hundred forty-three".

Divisors: 1 139 405037 56300143