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252232861 = 4136716763
BaseRepresentation
bin11110000100011…
…00010010011101
3122120121202102211
433002030102131
51004032422421
641010120421
76151641526
oct1702142235
9576552384
10252232861
1111a419311
1270580111
1340344b1a
14256db84d
15172259e1
hexf08c49d

252232861 has 8 divisors (see below), whose sum is σ = 259104384. Its totient is φ = 245395680.

The previous prime is 252232843. The next prime is 252232873. The reversal of 252232861 is 168232252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252232861 - 25 = 252232829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252232801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6666 + ... + 23428.

It is an arithmetic number, because the mean of its divisors is an integer number (32388048).

Almost surely, 2252232861 is an apocalyptic number.

It is an amenable number.

252232861 is a deficient number, since it is larger than the sum of its proper divisors (6871523).

252232861 is a wasteful number, since it uses less digits than its factorization.

252232861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17171.

The product of its digits is 11520, while the sum is 31.

The square root of 252232861 is about 15881.8406049173. The cubic root of 252232861 is about 631.8304546073.

The spelling of 252232861 in words is "two hundred fifty-two million, two hundred thirty-two thousand, eight hundred sixty-one".

Divisors: 1 41 367 15047 16763 687283 6152021 252232861