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57696387 = 372747447
BaseRepresentation
bin1101110000011…
…0000010000011
311000120021120020
43130012002003
5104232241022
65420344523
71300261020
oct334060203
9130507506
1057696387
112a628171
12173a5143
13bc51598
14793c547
1550ea35c
hex3706083

57696387 has 8 divisors (see below), whose sum is σ = 87918336. Its totient is φ = 32969352.

The previous prime is 57696367. The next prime is 57696391. The reversal of 57696387 is 78369675.

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

It is not a de Polignac number, because 57696387 - 26 = 57696323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57696347) 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, 1373703 + ... + 1373744.

It is an arithmetic number, because the mean of its divisors is an integer number (10989792).

Almost surely, 257696387 is an apocalyptic number.

57696387 is a deficient number, since it is larger than the sum of its proper divisors (30221949).

57696387 is a wasteful number, since it uses less digits than its factorization.

57696387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747457.

The product of its digits is 1905120, while the sum is 51.

The square root of 57696387 is about 7595.8137812877. The cubic root of 57696387 is about 386.4110519088.

The spelling of 57696387 in words is "fifty-seven million, six hundred ninety-six thousand, three hundred eighty-seven".

Divisors: 1 3 7 21 2747447 8242341 19232129 57696387