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56895442897 = 68383302259
BaseRepresentation
bin110100111111001110…
…111000111111010001
312102212010210222000211
4310333032320333101
51413010213133042
642045402444121
74052631166546
oct647716707721
9172763728024
1056895442897
1122146aa3397
12b03a203641
1354994c7b57
142a7a430bcd
15172ee09017
hexd3f3b8fd1

56895442897 has 4 divisors (see below), whose sum is σ = 56978745840. Its totient is φ = 56812139956.

The previous prime is 56895442883. The next prime is 56895442909. The reversal of 56895442897 is 79824459865.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56895442897 - 231 = 54747959249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56895442847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41650447 + ... + 41651812.

It is an arithmetic number, because the mean of its divisors is an integer number (14244686460).

Almost surely, 256895442897 is an apocalyptic number.

It is an amenable number.

56895442897 is a deficient number, since it is larger than the sum of its proper divisors (83302943).

56895442897 is an equidigital number, since it uses as much as digits as its factorization.

56895442897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83302942.

The product of its digits is 174182400, while the sum is 67.

The spelling of 56895442897 in words is "fifty-six billion, eight hundred ninety-five million, four hundred forty-two thousand, eight hundred ninety-seven".

Divisors: 1 683 83302259 56895442897