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252253212 = 22321021101
BaseRepresentation
bin11110000100100…
…01010000011100
3122120122210100120
433002101100130
51004034100322
641010354540
76152055051
oct1702212034
9576583316
10252253212
1111a432632
127058ba50
1340351173
1425705028
151722ba5c
hexf09141c

252253212 has 12 divisors (see below), whose sum is σ = 588590856. Its totient is φ = 84084400.

The previous prime is 252253189. The next prime is 252253237. The reversal of 252253212 is 212352252.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10510539 + ... + 10510562.

It is an arithmetic number, because the mean of its divisors is an integer number (49049238).

Almost surely, 2252253212 is an apocalyptic number.

It is an amenable number.

252253212 is an abundant number, since it is smaller than the sum of its proper divisors (336337644).

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

252253212 is a wasteful number, since it uses less digits than its factorization.

252253212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21021108 (or 21021106 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 252253212 is about 15882.4812922918. The cubic root of 252253212 is about 631.8474468893.

The spelling of 252253212 in words is "two hundred fifty-two million, two hundred fifty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 21021101 42042202 63063303 84084404 126126606 252253212