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52864045 = 513273857
BaseRepresentation
bin1100100110101…
…0010000101101
310200110202211121
43021222100231
5102013122140
65125020541
71211223403
oct311522055
9120422747
1052864045
11279275a3
1215854751
13ac4bc00
147041473
15499364a
hex326a42d

52864045 has 24 divisors (see below), whose sum is σ = 69714216. Its totient is φ = 38458368.

The previous prime is 52864039. The next prime is 52864069. The reversal of 52864045 is 54046825.

It can be written as a sum of positive squares in 12 ways, for example, as 15139881 + 37724164 = 3891^2 + 6142^2 .

It is not a de Polignac number, because 52864045 - 23 = 52864037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52864045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61257 + ... + 62113.

It is an arithmetic number, because the mean of its divisors is an integer number (2904759).

Almost surely, 252864045 is an apocalyptic number.

It is an amenable number.

52864045 is a deficient number, since it is larger than the sum of its proper divisors (16850171).

52864045 is a wasteful number, since it uses less digits than its factorization.

52864045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 52864045 is about 7270.7664657861. The cubic root of 52864045 is about 375.3071143394.

The spelling of 52864045 in words is "fifty-two million, eight hundred sixty-four thousand, forty-five".

Divisors: 1 5 13 65 73 169 365 845 857 949 4285 4745 11141 12337 55705 61685 62561 144833 312805 724165 813293 4066465 10572809 52864045