Search a number
-
+
57842985 = 353856199
BaseRepresentation
bin1101110010100…
…1110100101001
311000211201122210
43130221310221
5104301433420
65423435333
71301441304
oct334516451
9130751583
1057842985
112a718322
1217455b49
13bca3225
147979b3b
1551289e0
hex3729d29

57842985 has 8 divisors (see below), whose sum is σ = 92548800. Its totient is φ = 30849584.

The previous prime is 57842971. The next prime is 57842987. The reversal of 57842985 is 58924875.

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

It is a cyclic number.

It is not a de Polignac number, because 57842985 - 210 = 57841961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57842987) 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, 1928085 + ... + 1928114.

It is an arithmetic number, because the mean of its divisors is an integer number (11568600).

Almost surely, 257842985 is an apocalyptic number.

It is an amenable number.

57842985 is a deficient number, since it is larger than the sum of its proper divisors (34705815).

57842985 is a wasteful number, since it uses less digits than its factorization.

57842985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3856207.

The product of its digits is 806400, while the sum is 48.

The square root of 57842985 is about 7605.4575799225. The cubic root of 57842985 is about 386.7380462589.

The spelling of 57842985 in words is "fifty-seven million, eight hundred forty-two thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 3856199 11568597 19280995 57842985