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56822805 = 32513137709
BaseRepresentation
bin1101100011000…
…0110000010101
310221220220020100
43120300300111
5104021312210
65345524313
71256662104
oct330606025
9127826210
1056822805
112a0908a6
1217043699
13ba06a80
14779203b
154ec65c0
hex3630c15

56822805 has 48 divisors (see below), whose sum is σ = 106994160. Its totient is φ = 27730944.

The previous prime is 56822771. The next prime is 56822809. The reversal of 56822805 is 50822865.

It can be written as a sum of positive squares in 8 ways, for example, as 9790641 + 47032164 = 3129^2 + 6858^2 .

It is not a de Polignac number, because 56822805 - 26 = 56822741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56822805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56822809) 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 47 ways as a sum of consecutive naturals, for example, 79791 + ... + 80499.

It is an arithmetic number, because the mean of its divisors is an integer number (2229045).

Almost surely, 256822805 is an apocalyptic number.

It is an amenable number.

56822805 is a deficient number, since it is larger than the sum of its proper divisors (50171355).

56822805 is a wasteful number, since it uses less digits than its factorization.

56822805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 56822805 is about 7538.0902753947. The cubic root of 56822805 is about 384.4509066825.

The spelling of 56822805 in words is "fifty-six million, eight hundred twenty-two thousand, eight hundred five".

Divisors: 1 3 5 9 13 15 39 45 65 117 137 195 411 585 685 709 1233 1781 2055 2127 3545 5343 6165 6381 8905 9217 10635 16029 26715 27651 31905 46085 80145 82953 97133 138255 291399 414765 485665 874197 1262729 1456995 3788187 4370985 6313645 11364561 18940935 56822805