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57307064461 = 78139733399
BaseRepresentation
bin110101010111110001…
…000110100010001101
312110220211100111122221
4311113301012202031
51414331102030321
642154305135341
74066060003453
oct652761064215
9173824314587
1057307064461
11223383867a9
12b13402a551
1355338780ca
142ab8d7c9d3
151756115e41
hexd57c4688d

57307064461 has 4 divisors (see below), whose sum is σ = 57307876000. Its totient is φ = 57306252924.

The previous prime is 57307064429. The next prime is 57307064467. The reversal of 57307064461 is 16446070375.

57307064461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 57307064461 - 25 = 57307064429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57307064467) 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, 288561 + ... + 444838.

It is an arithmetic number, because the mean of its divisors is an integer number (14326969000).

Almost surely, 257307064461 is an apocalyptic number.

It is an amenable number.

57307064461 is a deficient number, since it is larger than the sum of its proper divisors (811539).

57307064461 is an equidigital number, since it uses as much as digits as its factorization.

57307064461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811538.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 57307064461 in words is "fifty-seven billion, three hundred seven million, sixty-four thousand, four hundred sixty-one".

Divisors: 1 78139 733399 57307064461