Search a number
-
+
56993185 = 511398637
BaseRepresentation
bin1101100101101…
…0010110100001
310222020112221201
43121122112201
5104042240220
65353321201
71261301614
oct331322641
9128215851
1056993185
112a197907
1217106201
13ba664a2
1477d817b
15500bd0a
hex365a5a1

56993185 has 4 divisors (see below), whose sum is σ = 68391828. Its totient is φ = 45594544.

The previous prime is 56993177. The next prime is 56993201. The reversal of 56993185 is 58139965.

56993185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29942784 + 27050401 = 5472^2 + 5201^2 .

It is a cyclic number.

It is not a de Polignac number, because 56993185 - 23 = 56993177 is a prime.

It is a Duffinian number.

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, 5699314 + ... + 5699323.

It is an arithmetic number, because the mean of its divisors is an integer number (17097957).

Almost surely, 256993185 is an apocalyptic number.

It is an amenable number.

56993185 is a deficient number, since it is larger than the sum of its proper divisors (11398643).

56993185 is a wasteful number, since it uses less digits than its factorization.

56993185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11398642.

The product of its digits is 291600, while the sum is 46.

The square root of 56993185 is about 7549.3830873787. The cubic root of 56993185 is about 384.8347747765.

The spelling of 56993185 in words is "fifty-six million, nine hundred ninety-three thousand, one hundred eighty-five".

Divisors: 1 5 11398637 56993185