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56809306 = 252354311
BaseRepresentation
bin1101100010110…
…1011101011010
310221220012201101
43120231131122
5104020344211
65345342014
71256604541
oct330553532
9127805641
1056809306
112a081744
121703790a
13ba00898
14778b158
154ec25c1
hex362d75a

56809306 has 8 divisors (see below), whose sum is σ = 85378464. Its totient is φ = 28349820.

The previous prime is 56809261. The next prime is 56809307. The reversal of 56809306 is 60390865.

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

It is not an unprimeable number, because it can be changed into a prime (56809307) 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, 26110 + ... + 28201.

It is an arithmetic number, because the mean of its divisors is an integer number (10672308).

Almost surely, 256809306 is an apocalyptic number.

56809306 is a deficient number, since it is larger than the sum of its proper divisors (28569158).

56809306 is a wasteful number, since it uses less digits than its factorization.

56809306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54836.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 56809306 is about 7537.1948362770. The cubic root of 56809306 is about 384.4204604922.

The spelling of 56809306 in words is "fifty-six million, eight hundred nine thousand, three hundred six".

Divisors: 1 2 523 1046 54311 108622 28404653 56809306