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56338789 = 134333753
BaseRepresentation
bin1101011011101…
…0100101100101
310221000022021211
43112322211211
5103410320124
65331311421
71252605013
oct326724545
9127008254
1056338789
1129890191
1216a4b571
13b897680
1476a78b3
154e2ce94
hex35ba965

56338789 has 4 divisors (see below), whose sum is σ = 60672556. Its totient is φ = 52005024.

The previous prime is 56338757. The next prime is 56338801. The reversal of 56338789 is 98783365.

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 23184225 + 33154564 = 4815^2 + 5758^2 .

It is a cyclic number.

It is not a de Polignac number, because 56338789 - 25 = 56338757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56338739) 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, 2166864 + ... + 2166889.

It is an arithmetic number, because the mean of its divisors is an integer number (15168139).

Almost surely, 256338789 is an apocalyptic number.

It is an amenable number.

56338789 is a deficient number, since it is larger than the sum of its proper divisors (4333767).

56338789 is a wasteful number, since it uses less digits than its factorization.

56338789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333766.

The product of its digits is 1088640, while the sum is 49.

The square root of 56338789 is about 7505.9169326605. The cubic root of 56338789 is about 383.3562097669.

The spelling of 56338789 in words is "fifty-six million, three hundred thirty-eight thousand, seven hundred eighty-nine".

Divisors: 1 13 4333753 56338789