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52363131 = 317454377
BaseRepresentation
bin1100011110111…
…1111101111011
310122112022201020
43013233331323
5101401110011
65110153523
71204036122
oct307577573
9118468636
1052363131
1127615217
12156528a3
13ab04c02
146d50ab9
1548e5006
hex31eff7b

52363131 has 4 divisors (see below), whose sum is σ = 69817512. Its totient is φ = 34908752.

The previous prime is 52363127. The next prime is 52363133. The reversal of 52363131 is 13136325.

It is a happy number.

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 52363131 - 22 = 52363127 is a prime.

It is a super-2 number, since 2×523631312 = 5483794976246322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52363133) 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, 8727186 + ... + 8727191.

It is an arithmetic number, because the mean of its divisors is an integer number (17454378).

Almost surely, 252363131 is an apocalyptic number.

52363131 is a deficient number, since it is larger than the sum of its proper divisors (17454381).

52363131 is a wasteful number, since it uses less digits than its factorization.

52363131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17454380.

The product of its digits is 1620, while the sum is 24.

The square root of 52363131 is about 7236.2373509995. The cubic root of 52363131 is about 374.1179411079.

Adding to 52363131 its reverse (13136325), we get a palindrome (65499456).

The spelling of 52363131 in words is "fifty-two million, three hundred sixty-three thousand, one hundred thirty-one".

Divisors: 1 3 17454377 52363131