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252308255 = 550461651
BaseRepresentation
bin11110000100111…
…10101100011111
3122120202120212012
433002132230133
51004042331010
641011501435
76152404403
oct1702365437
9576676765
10252308255
1111a46aa21
12705b787b
1340370234
142571b103
151723d005
hexf09eb1f

252308255 has 4 divisors (see below), whose sum is σ = 302769912. Its totient is φ = 201846600.

The previous prime is 252308209. The next prime is 252308279. The reversal of 252308255 is 552803252.

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

It is not a de Polignac number, because 252308255 - 26 = 252308191 is a prime.

It is a super-2 number, since 2×2523082552 = 127318911082290050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 25230821 + ... + 25230830.

It is an arithmetic number, because the mean of its divisors is an integer number (75692478).

Almost surely, 2252308255 is an apocalyptic number.

252308255 is a deficient number, since it is larger than the sum of its proper divisors (50461657).

252308255 is an equidigital number, since it uses as much as digits as its factorization.

252308255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50461656.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 252308255 is about 15884.2140189561. The cubic root of 252308255 is about 631.8934010444.

The spelling of 252308255 in words is "two hundred fifty-two million, three hundred eight thousand, two hundred fifty-five".

Divisors: 1 5 50461651 252308255