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252217352 = 23226713907
BaseRepresentation
bin11110000100010…
…00100000001000
3122120120222011102
433002020200020
51004031423402
641005520532
76151545362
oct1702104010
9576528142
10252217352
1111a4086a2
1270573148
134033aa4a
14256d5d32
1517221102
hexf088808

252217352 has 16 divisors (see below), whose sum is σ = 473150160. Its totient is φ = 126043984.

The previous prime is 252217349. The next prime is 252217387. The reversal of 252217352 is 253712252.

It is a super-3 number, since 3×2522173523 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11183 + ... + 25089.

It is an arithmetic number, because the mean of its divisors is an integer number (29571885).

Almost surely, 2252217352 is an apocalyptic number.

It is an amenable number.

252217352 is a deficient number, since it is larger than the sum of its proper divisors (220932808).

252217352 is a wasteful number, since it uses less digits than its factorization.

252217352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16180 (or 16176 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 252217352 is about 15881.3523353649. The cubic root of 252217352 is about 631.8175045904.

The spelling of 252217352 in words is "two hundred fifty-two million, two hundred seventeen thousand, three hundred fifty-two".

Divisors: 1 2 4 8 2267 4534 9068 13907 18136 27814 55628 111256 31527169 63054338 126108676 252217352