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52865057 = 729260419
BaseRepresentation
bin1100100110101…
…0100000100001
310200110211020002
43021222200201
5102013140212
65125025345
71211226350
oct311524041
9120424202
1052865057
1127928333
1215855255
13ac4c4cb
147041997
154993ac2
hex326a821

52865057 has 8 divisors (see below), whose sum is σ = 62500800. Its totient is φ = 43750224.

The previous prime is 52865047. The next prime is 52865081. The reversal of 52865057 is 75056825.

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

It is not a de Polignac number, because 52865057 - 24 = 52865041 is a prime.

It is a super-2 number, since 2×528650572 = 5589428503226498, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52865057.

It is not an unprimeable number, because it can be changed into a prime (52865047) 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, 130007 + ... + 130412.

It is an arithmetic number, because the mean of its divisors is an integer number (7812600).

Almost surely, 252865057 is an apocalyptic number.

It is an amenable number.

52865057 is a deficient number, since it is larger than the sum of its proper divisors (9635743).

52865057 is a wasteful number, since it uses less digits than its factorization.

52865057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260455.

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 52865057 is about 7270.8360592163. The cubic root of 52865057 is about 375.3095092146.

The spelling of 52865057 in words is "fifty-two million, eight hundred sixty-five thousand, fifty-seven".

Divisors: 1 7 29 203 260419 1822933 7552151 52865057