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52815883 = 66179903
BaseRepresentation
bin1100100101111…
…0100000001011
310200101022202211
43021132200023
5102010102013
65124005551
71210633111
oct311364013
9120338684
1052815883
11278a439a
12158308b7
13ac33003
14702bab1
15498423d
hex325e80b

52815883 has 4 divisors (see below), whose sum is σ = 52896448. Its totient is φ = 52735320.

The previous prime is 52815869. The next prime is 52815901. The reversal of 52815883 is 38851825.

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

It is a cyclic number.

It is not a de Polignac number, because 52815883 - 217 = 52684811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52815853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39291 + ... + 40612.

It is an arithmetic number, because the mean of its divisors is an integer number (13224112).

Almost surely, 252815883 is an apocalyptic number.

52815883 is a deficient number, since it is larger than the sum of its proper divisors (80565).

52815883 is an equidigital number, since it uses as much as digits as its factorization.

52815883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80564.

The product of its digits is 76800, while the sum is 40.

The square root of 52815883 is about 7267.4536806229. The cubic root of 52815883 is about 375.1931046926.

The spelling of 52815883 in words is "fifty-two million, eight hundred fifteen thousand, eight hundred eighty-three".

Divisors: 1 661 79903 52815883