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56044469 = 134311113
BaseRepresentation
bin1101010111001…
…0101110110101
310220110100120002
43111302232311
5103321410334
65321121045
71250240645
oct325625665
9126410502
1056044469
11296aa048
1216929185
13b7c3710
14762c525
154dc0b7e
hex3572bb5

56044469 has 4 divisors (see below), whose sum is σ = 60355596. Its totient is φ = 51733344.

The previous prime is 56044459. The next prime is 56044477. The reversal of 56044469 is 96444065.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96444065 = 519288813.

It can be written as a sum of positive squares in 2 ways, for example, as 11662225 + 44382244 = 3415^2 + 6662^2 .

It is not a de Polignac number, because 56044469 - 220 = 54995893 is a prime.

It is a super-2 number, since 2×560444692 = 6281965010983922, 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 (56044459) 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, 2155544 + ... + 2155569.

It is an arithmetic number, because the mean of its divisors is an integer number (15088899).

Almost surely, 256044469 is an apocalyptic number.

It is an amenable number.

56044469 is a deficient number, since it is larger than the sum of its proper divisors (4311127).

56044469 is a wasteful number, since it uses less digits than its factorization.

56044469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311126.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 56044469 is about 7486.2853939721. The cubic root of 56044469 is about 382.6874789711.

The spelling of 56044469 in words is "fifty-six million, forty-four thousand, four hundred sixty-nine".

Divisors: 1 13 4311113 56044469