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57707897 = 1323193003
BaseRepresentation
bin1101110000100…
…0110101111001
311000120212100112
43130020311321
5104233123042
65420514105
71300336412
oct334106571
9130525315
1057707897
112a635885
12173ab935
13bc568b0
147942809
1550ed982
hex3708d79

57707897 has 8 divisors (see below), whose sum is σ = 64849344. Its totient is φ = 50952528.

The previous prime is 57707893. The next prime is 57707899. The reversal of 57707897 is 79870775.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57707897 - 22 = 57707893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57707893) 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, 96203 + ... + 96800.

It is an arithmetic number, because the mean of its divisors is an integer number (8106168).

Almost surely, 257707897 is an apocalyptic number.

It is an amenable number.

57707897 is a deficient number, since it is larger than the sum of its proper divisors (7141447).

57707897 is a wasteful number, since it uses less digits than its factorization.

57707897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193039.

The product of its (nonzero) digits is 864360, while the sum is 50.

The square root of 57707897 is about 7596.5713976767. The cubic root of 57707897 is about 386.4367455771.

The spelling of 57707897 in words is "fifty-seven million, seven hundred seven thousand, eight hundred ninety-seven".

Divisors: 1 13 23 299 193003 2509039 4439069 57707897