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52642413 = 331949719
BaseRepresentation
bin1100100011010…
…0001001101101
310200001111211000
43020310021231
5101434024123
65120150513
71206311265
oct310641155
9120044730
1052642413
112779602a
1215768439
13aba2075
146dc47a5
15494cb43
hex323426d

52642413 has 8 divisors (see below), whose sum is σ = 77988800. Its totient is φ = 35094924.

The previous prime is 52642399. The next prime is 52642427. The reversal of 52642413 is 31424625.

52642413 is a `hidden beast` number, since 5 + 2 + 642 + 4 + 13 = 666.

It is an interprime number because it is at equal distance from previous prime (52642399) and next prime (52642427).

It is not a de Polignac number, because 52642413 - 26 = 52642349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1949719 = 52642413 / (5 + 2 + 6 + 4 + 2 + 4 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52642463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974833 + ... + 974886.

It is an arithmetic number, because the mean of its divisors is an integer number (9748600).

Almost surely, 252642413 is an apocalyptic number.

It is an amenable number.

52642413 is a deficient number, since it is larger than the sum of its proper divisors (25346387).

52642413 is a wasteful number, since it uses less digits than its factorization.

52642413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949728 (or 1949722 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 52642413 is about 7255.5091482266. The cubic root of 52642413 is about 374.7818891650.

The spelling of 52642413 in words is "fifty-two million, six hundred forty-two thousand, four hundred thirteen".

Divisors: 1 3 9 27 1949719 5849157 17547471 52642413