Search a number
-
+
56000783 = 131942457
BaseRepresentation
bin1101010110100…
…0000100001111
310220101010122002
43111220010033
5103314011113
65320142515
71246666406
oct325500417
9126333562
1056000783
112967a243
1216907a3b
13b7a9877
14761a63d
154db2c58
hex356810f

56000783 has 4 divisors (see below), whose sum is σ = 56044560. Its totient is φ = 55957008.

The previous prime is 56000773. The next prime is 56000803. The reversal of 56000783 is 38700065.

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

It is a cyclic number.

It is not a de Polignac number, because 56000783 - 24 = 56000767 is a prime.

It is a super-2 number, since 2×560007832 = 6272175393226178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56000723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19910 + ... + 22547.

It is an arithmetic number, because the mean of its divisors is an integer number (14011140).

Almost surely, 256000783 is an apocalyptic number.

56000783 is a deficient number, since it is larger than the sum of its proper divisors (43777).

56000783 is a wasteful number, since it uses less digits than its factorization.

56000783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43776.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 56000783 is about 7483.3670897531. The cubic root of 56000783 is about 382.5880196713.

The spelling of 56000783 in words is "fifty-six million, seven hundred eighty-three", and thus it is an aban number.

Divisors: 1 1319 42457 56000783