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252013244 = 2279000473
BaseRepresentation
bin11110000010101…
…10101010111100
3122120012121011212
433001112222330
51004003410434
641001303552
76150035330
oct1701265274
9576177155
10252013244
1111a28930a
1270494bb8
1340298b82
14256817c0
15171d08ce
hexf056abc

252013244 has 12 divisors (see below), whose sum is σ = 504026544. Its totient is φ = 108005664.

The previous prime is 252013241. The next prime is 252013259. The reversal of 252013244 is 442310252.

It is a happy number.

252013244 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252013241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4500209 + ... + 4500264.

It is an arithmetic number, because the mean of its divisors is an integer number (42002212).

Almost surely, 2252013244 is an apocalyptic number.

It is an amenable number.

252013244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

252013244 is a wasteful number, since it uses less digits than its factorization.

252013244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9000484 (or 9000482 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 252013244 is about 15874.9250076969. The cubic root of 252013244 is about 631.6470248981.

Adding to 252013244 its reverse (442310252), we get a palindrome (694323496).

The spelling of 252013244 in words is "two hundred fifty-two million, thirteen thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 9000473 18000946 36001892 63003311 126006622 252013244