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252132244 = 22721398953
BaseRepresentation
bin11110000011100…
…11101110010100
3122120102122102021
433001303232110
51004021212434
641004022524
76151042300
oct1701635624
9576378367
10252132244
1111a35a761
1270531a44
134030b0a0
14256b2d00
1517205cb4
hexf073b94

252132244 has 36 divisors (see below), whose sum is σ = 552757044. Its totient is φ = 99743616.

The previous prime is 252132241. The next prime is 252132277. The reversal of 252132244 is 442231252.

It can be written as a sum of positive squares in 2 ways, for example, as 80784144 + 171348100 = 8988^2 + 13090^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252132241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46929 + ... + 52024.

Almost surely, 2252132244 is an apocalyptic number.

It is an amenable number.

252132244 is an abundant number, since it is smaller than the sum of its proper divisors (300624800).

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

252132244 is a wasteful number, since it uses less digits than its factorization.

252132244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98984 (or 98975 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 252132244 is about 15878.6726145481. The cubic root of 252132244 is about 631.7464299489.

Adding to 252132244 its reverse (442231252), we get a palindrome (694363496).

It can be divided in two parts, 252 and 132244, that added together give a square (132496 = 3642).

The spelling of 252132244 in words is "two hundred fifty-two million, one hundred thirty-two thousand, two hundred forty-four".

Divisors: 1 2 4 7 13 14 26 28 49 52 91 98 182 196 364 637 1274 2548 98953 197906 395812 692671 1286389 1385342 2572778 2770684 4848697 5145556 9004723 9697394 18009446 19394788 36018892 63033061 126066122 252132244