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52355231 = 509102859
BaseRepresentation
bin1100011110111…
…0000010011111
310122111220212122
43013232002133
5101400331411
65110053155
71204004105
oct307560237
9118456778
1052355231
112760a295
121564a1bb
13ab01436
146d4bc75
1548e29db
hex31ee09f

52355231 has 4 divisors (see below), whose sum is σ = 52458600. Its totient is φ = 52251864.

The previous prime is 52355221. The next prime is 52355267. The reversal of 52355231 is 13255325.

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 52355231 - 210 = 52354207 is a prime.

It is a super-2 number, since 2×523552312 = 5482140426126722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52355231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52355221) 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, 50921 + ... + 51938.

It is an arithmetic number, because the mean of its divisors is an integer number (13114650).

Almost surely, 252355231 is an apocalyptic number.

52355231 is a deficient number, since it is larger than the sum of its proper divisors (103369).

52355231 is a wasteful number, since it uses less digits than its factorization.

52355231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103368.

The product of its digits is 4500, while the sum is 26.

The square root of 52355231 is about 7235.6914666119. The cubic root of 52355231 is about 374.0991258313.

The spelling of 52355231 in words is "fifty-two million, three hundred fifty-five thousand, two hundred thirty-one".

Divisors: 1 509 102859 52355231