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52644493 = 1123283109
BaseRepresentation
bin1100100011010…
…0101010001101
310200001121200001
43020310222031
5101434110433
65120204301
71206320326
oct310645215
9120047601
1052644493
1127797650
1215769691
13aba2cb5
146dc544d
15494d57d
hex3234a8d

52644493 has 24 divisors (see below), whose sum is σ = 61316640. Its totient is φ = 44811360.

The previous prime is 52644491. The next prime is 52644517. The reversal of 52644493 is 39444625.

It is a happy number.

It is not a de Polignac number, because 52644493 - 21 = 52644491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52644491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 482923 + ... + 483031.

It is an arithmetic number, because the mean of its divisors is an integer number (2554860).

Almost surely, 252644493 is an apocalyptic number.

It is an amenable number.

52644493 is a deficient number, since it is larger than the sum of its proper divisors (8672147).

52644493 is a wasteful number, since it uses less digits than its factorization.

52644493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 226 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 52644493 is about 7255.6524861655. The cubic root of 52644493 is about 374.7868252107.

The spelling of 52644493 in words is "fifty-two million, six hundred forty-four thousand, four hundred ninety-three".

Divisors: 1 11 23 83 109 253 529 913 1199 1909 2507 5819 9047 20999 27577 43907 57661 99517 208081 482977 634271 2288891 4785863 52644493