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57345625747 = 205327932599
BaseRepresentation
bin110101011010000100…
…001100111010010011
312111000111220121210201
4311122010030322103
51414420440010442
642202203440031
74100035530154
oct653204147223
9174014817721
1057345625747
1122358124433
12b144b26017
13553b859b37
142ac013992b
1517596d17b7
hexd5a10ce93

57345625747 has 4 divisors (see below), whose sum is σ = 57373560400. Its totient is φ = 57317691096.

The previous prime is 57345625723. The next prime is 57345625783. The reversal of 57345625747 is 74752654375.

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

It is a cyclic number.

It is not a de Polignac number, because 57345625747 - 27 = 57345625619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57345325747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13964247 + ... + 13968352.

It is an arithmetic number, because the mean of its divisors is an integer number (14343390100).

Almost surely, 257345625747 is an apocalyptic number.

57345625747 is a deficient number, since it is larger than the sum of its proper divisors (27934653).

57345625747 is a wasteful number, since it uses less digits than its factorization.

57345625747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27934652.

The product of its digits is 24696000, while the sum is 55.

The spelling of 57345625747 in words is "fifty-seven billion, three hundred forty-five million, six hundred twenty-five thousand, seven hundred forty-seven".

Divisors: 1 2053 27932599 57345625747