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57681895 = 511536379
BaseRepresentation
bin1101110000001…
…0011111100111
311000112112200111
43130002133213
5104231310040
65420153451
71300200535
oct334023747
9130475614
1057681895
112a618297
1217398887
13bc47acb
147937155
1550e5dea
hex37027e7

57681895 has 4 divisors (see below), whose sum is σ = 69218280. Its totient is φ = 46145512.

The previous prime is 57681893. The next prime is 57681919. The reversal of 57681895 is 59818675.

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 57681895 - 21 = 57681893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57681893) 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, 5768185 + ... + 5768194.

It is an arithmetic number, because the mean of its divisors is an integer number (17304570).

Almost surely, 257681895 is an apocalyptic number.

57681895 is a deficient number, since it is larger than the sum of its proper divisors (11536385).

57681895 is a wasteful number, since it uses less digits than its factorization.

57681895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11536384.

The product of its digits is 604800, while the sum is 49.

The square root of 57681895 is about 7594.8597748741. The cubic root of 57681895 is about 386.3786966888.

The spelling of 57681895 in words is "fifty-seven million, six hundred eighty-one thousand, eight hundred ninety-five".

Divisors: 1 5 11536379 57681895