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57072883 = 759138191
BaseRepresentation
bin1101100110110…
…1110011110011
310222101121021111
43121231303303
5104102313013
65355134151
71262053150
oct331556363
9128347244
1057072883
112a24177a
1217144357
13ba9384a
147819227
15502573d
hex366dcf3

57072883 has 8 divisors (see below), whose sum is σ = 66332160. Its totient is φ = 48090120.

The previous prime is 57072877. The next prime is 57072887. The reversal of 57072883 is 38827075.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57072883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57072887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68683 + ... + 69508.

It is an arithmetic number, because the mean of its divisors is an integer number (8291520).

Almost surely, 257072883 is an apocalyptic number.

57072883 is a deficient number, since it is larger than the sum of its proper divisors (9259277).

57072883 is a wasteful number, since it uses less digits than its factorization.

57072883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138257.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 57072883 is about 7554.6596879012. The cubic root of 57072883 is about 385.0140726851.

The spelling of 57072883 in words is "fifty-seven million, seventy-two thousand, eight hundred eighty-three".

Divisors: 1 7 59 413 138191 967337 8153269 57072883