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252133267 = 307821281
BaseRepresentation
bin11110000011100…
…11111110010011
3122120102200211011
433001303332103
51004021231032
641004031351
76151045261
oct1701637623
9576380734
10252133267
1111a360501
1270532557
134030b6a9
14256b3431
1517206247
hexf073f93

252133267 has 4 divisors (see below), whose sum is σ = 252954856. Its totient is φ = 251311680.

The previous prime is 252133253. The next prime is 252133303. The reversal of 252133267 is 762331252.

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 252133267 - 27 = 252133139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252133237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410334 + ... + 410947.

It is an arithmetic number, because the mean of its divisors is an integer number (63238714).

Almost surely, 2252133267 is an apocalyptic number.

252133267 is a deficient number, since it is larger than the sum of its proper divisors (821589).

252133267 is an equidigital number, since it uses as much as digits as its factorization.

252133267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821588.

The product of its digits is 15120, while the sum is 31.

The square root of 252133267 is about 15878.7048275355. The cubic root of 252133267 is about 631.7472843626.

The spelling of 252133267 in words is "two hundred fifty-two million, one hundred thirty-three thousand, two hundred sixty-seven".

Divisors: 1 307 821281 252133267