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252252222 = 23178592879
BaseRepresentation
bin11110000100100…
…01000000111110
3122120122201222220
433002101000332
51004034032342
641010350210
76152052135
oct1702210076
9576581886
10252252222
1111a431912
127058b366
1340350891
142570491c
151722b5ec
hexf09103e

252252222 has 32 divisors (see below), whose sum is σ = 534988800. Its totient is φ = 79018368.

The previous prime is 252252211. The next prime is 252252223. The reversal of 252252222 is 222252252.

It is a junction number, because it is equal to n+sod(n) for n = 252252192 and 252252201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252252223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86179 + ... + 89057.

It is an arithmetic number, because the mean of its divisors is an integer number (16718400).

Almost surely, 2252252222 is an apocalyptic number.

252252222 is an abundant number, since it is smaller than the sum of its proper divisors (282736578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252252222 is a wasteful number, since it uses less digits than its factorization.

252252222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760.

The product of its digits is 3200, while the sum is 24.

The square root of 252252222 is about 15882.4501258465. The cubic root of 252252222 is about 631.8466202995.

The spelling of 252252222 in words is "two hundred fifty-two million, two hundred fifty-two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 17 34 51 102 859 1718 2577 2879 5154 5758 8637 14603 17274 29206 43809 48943 87618 97886 146829 293658 2473061 4946122 7419183 14838366 42042037 84084074 126126111 252252222