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52043913 = 325782657
BaseRepresentation
bin1100011010001…
…0000010001001
310121221002211100
43012202002021
5101310401123
65055252013
71201236345
oct306420211
9117832740
1052043913
11274173a9
121551a009
13aa2281c
146caa625
154880643
hex31a2089

52043913 has 6 divisors (see below), whose sum is σ = 75174554. Its totient is φ = 34695936.

The previous prime is 52043911. The next prime is 52043939. The reversal of 52043913 is 31934025.

It can be written as a sum of positive squares in only one way, i.e., 41370624 + 10673289 = 6432^2 + 3267^2 .

It is not a de Polignac number, because 52043913 - 21 = 52043911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52043911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2891320 + ... + 2891337.

Almost surely, 252043913 is an apocalyptic number.

It is an amenable number.

52043913 is a deficient number, since it is larger than the sum of its proper divisors (23130641).

52043913 is a wasteful number, since it uses less digits than its factorization.

52043913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782663 (or 5782660 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 52043913 is about 7214.1467270912. The cubic root of 52043913 is about 373.3561539161.

Adding to 52043913 its reverse (31934025), we get a palindrome (83977938).

The spelling of 52043913 in words is "fifty-two million, forty-three thousand, nine hundred thirteen".

Divisors: 1 3 9 5782657 17347971 52043913