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57819994 = 2131220687
BaseRepresentation
bin1101110010010…
…0001101011010
311000210120010021
43130210031122
5104300214434
65423141054
71301314261
oct334441532
9130716107
1057819994
112a702021
121744478a
13bc9591b
1479715d8
155121cb4
hex372435a

57819994 has 8 divisors (see below), whose sum is σ = 87392448. Its totient is φ = 28689180.

The previous prime is 57819989. The next prime is 57820027. The reversal of 57819994 is 49991875.

57819994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

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, 110082 + ... + 110605.

It is an arithmetic number, because the mean of its divisors is an integer number (10924056).

Almost surely, 257819994 is an apocalyptic number.

57819994 is a deficient number, since it is larger than the sum of its proper divisors (29572454).

57819994 is a wasteful number, since it uses less digits than its factorization.

57819994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220820.

The product of its digits is 816480, while the sum is 52.

The square root of 57819994 is about 7603.9459493082. The cubic root of 57819994 is about 386.6868002134.

The spelling of 57819994 in words is "fifty-seven million, eight hundred nineteen thousand, nine hundred ninety-four".

Divisors: 1 2 131 262 220687 441374 28909997 57819994