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52121163 = 317373721
BaseRepresentation
bin1100011011010…
…0111001001011
310122002000210110
43012310321023
5101320334123
65101045403
71202010513
oct306647113
9118060713
1052121163
112746a446
1215556863
13aa4ba33
146cca843
154898493
hex31b4e4b

52121163 has 4 divisors (see below), whose sum is σ = 69494888. Its totient is φ = 34747440.

The previous prime is 52121143. The next prime is 52121177. The reversal of 52121163 is 36112125.

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

It is not a de Polignac number, because 52121163 - 28 = 52120907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52121143) 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, 8686858 + ... + 8686863.

It is an arithmetic number, because the mean of its divisors is an integer number (17373722).

Almost surely, 252121163 is an apocalyptic number.

52121163 is a deficient number, since it is larger than the sum of its proper divisors (17373725).

52121163 is a wasteful number, since it uses less digits than its factorization.

52121163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17373724.

The product of its digits is 360, while the sum is 21.

The square root of 52121163 is about 7219.4988053188. The cubic root of 52121163 is about 373.5407896901.

Adding to 52121163 its reverse (36112125), we get a palindrome (88233288).

The spelling of 52121163 in words is "fifty-two million, one hundred twenty-one thousand, one hundred sixty-three".

Divisors: 1 3 17373721 52121163