Search a number
-
+
56643795 = 3251396827
BaseRepresentation
bin1101100000010…
…1000011010011
310221120210200100
43120011003103
5104000100140
65342023443
71255315155
oct330050323
9127523610
1056643795
1129a7935a
1216b77b83
13b973450
147746ad5
154e8d530
hex36050d3

56643795 has 24 divisors (see below), whose sum is σ = 105736176. Its totient is φ = 27885888.

The previous prime is 56643793. The next prime is 56643809. The reversal of 56643795 is 59734665.

It is not a de Polignac number, because 56643795 - 21 = 56643793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 56643795.

It is not an unprimeable number, because it can be changed into a prime (56643793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47829 + ... + 48998.

It is an arithmetic number, because the mean of its divisors is an integer number (4405674).

Almost surely, 256643795 is an apocalyptic number.

56643795 is a deficient number, since it is larger than the sum of its proper divisors (49092381).

56643795 is a wasteful number, since it uses less digits than its factorization.

56643795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96851 (or 96848 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 56643795 is about 7526.2072121355. The cubic root of 56643795 is about 384.0467675787.

The spelling of 56643795 in words is "fifty-six million, six hundred forty-three thousand, seven hundred ninety-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 96827 290481 484135 871443 1258751 1452405 3776253 4357215 6293755 11328759 18881265 56643795