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52744565 = 561172933
BaseRepresentation
bin1100100100110…
…1000101110101
310200020200221102
43021031011311
5102000311230
65122255445
71210215146
oct311150565
9120220842
1052744565
1127855855
12157b7585
13ac09703
14700dacd
15496d045
hex324d175

52744565 has 8 divisors (see below), whose sum is σ = 64331448. Its totient is φ = 41503680.

The previous prime is 52744561. The next prime is 52744579. The reversal of 52744565 is 56544725.

52744565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7921 + 52736644 = 89^2 + 7262^2 .

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

It is not a de Polignac number, because 52744565 - 22 = 52744561 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 (52744561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86162 + ... + 86771.

It is an arithmetic number, because the mean of its divisors is an integer number (8041431).

Almost surely, 252744565 is an apocalyptic number.

It is an amenable number.

52744565 is a deficient number, since it is larger than the sum of its proper divisors (11586883).

52744565 is a wasteful number, since it uses less digits than its factorization.

52744565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172999.

The product of its digits is 168000, while the sum is 38.

The square root of 52744565 is about 7262.5453526983. The cubic root of 52744565 is about 375.0241525185.

The spelling of 52744565 in words is "fifty-two million, seven hundred forty-four thousand, five hundred sixty-five".

Divisors: 1 5 61 305 172933 864665 10548913 52744565