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57071697 = 319023899
BaseRepresentation
bin1101100110110…
…1100001010001
310222101112122120
43121231201101
5104102243242
65355124453
71262046534
oct331554121
9128345576
1057071697
112a2408a1
1217143729
13ba93147
147818a1b
1550251ec
hex366d851

57071697 has 4 divisors (see below), whose sum is σ = 76095600. Its totient is φ = 38047796.

The previous prime is 57071657. The next prime is 57071699. The reversal of 57071697 is 79617075.

57071697 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 57071697 - 26 = 57071633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57071699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9511947 + ... + 9511952.

It is an arithmetic number, because the mean of its divisors is an integer number (19023900).

Almost surely, 257071697 is an apocalyptic number.

It is an amenable number.

57071697 is a deficient number, since it is larger than the sum of its proper divisors (19023903).

57071697 is a wasteful number, since it uses less digits than its factorization.

57071697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19023902.

The product of its (nonzero) digits is 92610, while the sum is 42.

The square root of 57071697 is about 7554.5811928922. The cubic root of 57071697 is about 385.0114057452.

The spelling of 57071697 in words is "fifty-seven million, seventy-one thousand, six hundred ninety-seven".

Divisors: 1 3 19023899 57071697