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52115345 = 510423069
BaseRepresentation
bin1100011011001…
…1011110010001
310122001201210222
43012303132101
5101320142340
65101002425
71201654532
oct306633621
9118051728
1052115345
1127466037
1215553415
13aa491a9
146cc8689
1548968b5
hex31b3791

52115345 has 4 divisors (see below), whose sum is σ = 62538420. Its totient is φ = 41692272.

The previous prime is 52115321. The next prime is 52115363. The reversal of 52115345 is 54351125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14868736 + 37246609 = 3856^2 + 6103^2 .

It is a cyclic number.

It is not a de Polignac number, because 52115345 - 26 = 52115281 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5211530 + ... + 5211539.

It is an arithmetic number, because the mean of its divisors is an integer number (15634605).

Almost surely, 252115345 is an apocalyptic number.

It is an amenable number.

52115345 is a deficient number, since it is larger than the sum of its proper divisors (10423075).

52115345 is a wasteful number, since it uses less digits than its factorization.

52115345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10423074.

The product of its digits is 3000, while the sum is 26.

The square root of 52115345 is about 7219.0958575157. The cubic root of 52115345 is about 373.5268904020.

The spelling of 52115345 in words is "fifty-two million, one hundred fifteen thousand, three hundred forty-five".

Divisors: 1 5 10423069 52115345