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252218832 = 2435254559
BaseRepresentation
bin11110000100010…
…00110111010000
3122120121001012020
433002020313100
51004032000312
641005531440
76151552605
oct1702106720
9576531166
10252218832
1111a409818
1270573b80
134033b618
14256d66ac
151722178c
hexf088dd0

252218832 has 20 divisors (see below), whose sum is σ = 651565440. Its totient is φ = 84072928.

The previous prime is 252218809. The next prime is 252218833. The reversal of 252218832 is 238812252.

252218832 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2522188322 = 127228678430888448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252218793 and 252218802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252218833) 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, 2627232 + ... + 2627327.

It is an arithmetic number, because the mean of its divisors is an integer number (32578272).

Almost surely, 2252218832 is an apocalyptic number.

It is an amenable number.

252218832 is an abundant number, since it is smaller than the sum of its proper divisors (399346608).

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

252218832 is a wasteful number, since it uses less digits than its factorization.

252218832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5254570 (or 5254564 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 252218832 is about 15881.3989308247. The cubic root of 252218832 is about 631.8187404135.

The spelling of 252218832 in words is "two hundred fifty-two million, two hundred eighteen thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 5254559 10509118 15763677 21018236 31527354 42036472 63054708 84072944 126109416 252218832