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52512506065 = 517617794189
BaseRepresentation
bin110000111001111111…
…010100000011010001
312000112200112201000001
4300321333110003101
51330021200143230
640042433130001
73536210636215
oct607177240321
9160480481001
1052512506065
11202a7a39048
12a2163b9901
134c4b45a5c6
1427822b8945
1515752410ca
hexc39fd40d1

52512506065 has 8 divisors (see below), whose sum is σ = 66721772520. Its totient is φ = 39538828032.

The previous prime is 52512506047. The next prime is 52512506087. The reversal of 52512506065 is 56060521525.

52512506065 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 9574035409 + 42938470656 = 97847^2 + 207216^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 52512506065 - 211 = 52512504017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308897010 + ... + 308897179.

It is an arithmetic number, because the mean of its divisors is an integer number (8340221565).

Almost surely, 252512506065 is an apocalyptic number.

It is an amenable number.

52512506065 is a deficient number, since it is larger than the sum of its proper divisors (14209266455).

52512506065 is a wasteful number, since it uses less digits than its factorization.

52512506065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617794211.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 52512506065 in words is "fifty-two billion, five hundred twelve million, five hundred six thousand, sixty-five".

Divisors: 1 5 17 85 617794189 3088970945 10502501213 52512506065