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252252831 = 384084277
BaseRepresentation
bin11110000100100…
…01001010011111
3122120122202211110
433002101022133
51004034042311
641010353103
76152053665
oct1702211237
9576582743
10252252831
1111a432316
127058b793
1340350c3c
1425704c35
151722b8a6
hexf09129f

252252831 has 4 divisors (see below), whose sum is σ = 336337112. Its totient is φ = 168168552.

The previous prime is 252252809. The next prime is 252252841. The reversal of 252252831 is 138252252.

252252831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 252252831 - 27 = 252252703 is a prime.

It is a super-2 number, since 2×2522528312 = 127262981495029122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252252841) 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, 42042136 + ... + 42042141.

It is an arithmetic number, because the mean of its divisors is an integer number (84084278).

Almost surely, 2252252831 is an apocalyptic number.

252252831 is a deficient number, since it is larger than the sum of its proper divisors (84084281).

252252831 is an equidigital number, since it uses as much as digits as its factorization.

252252831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84084280.

The product of its digits is 9600, while the sum is 30.

The square root of 252252831 is about 15882.4692979398. The cubic root of 252252831 is about 631.8471287778.

The spelling of 252252831 in words is "two hundred fifty-two million, two hundred fifty-two thousand, eight hundred thirty-one".

Divisors: 1 3 84084277 252252831