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252320330 = 2543158543
BaseRepresentation
bin11110000101000…
…01101001001010
3122120210012102102
433002201221022
51004043222310
641012033402
76152454533
oct1702415112
9576705372
10252320330
1111a478aa9
1270602862
1340375892
142572168a
15172418a5
hexf0a1a4a

252320330 has 16 divisors (see below), whose sum is σ = 455238144. Its totient is φ = 100692240.

The previous prime is 252320317. The next prime is 252320347. The reversal of 252320330 is 33023252.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24962 + ... + 33581.

It is an arithmetic number, because the mean of its divisors is an integer number (28452384).

Almost surely, 2252320330 is an apocalyptic number.

252320330 is a deficient number, since it is larger than the sum of its proper divisors (202917814).

252320330 is a wasteful number, since it uses less digits than its factorization.

252320330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58981.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 252320330 is about 15884.5941087583. The cubic root of 252320330 is about 631.9034812948.

Adding to 252320330 its reverse (33023252), we get a palindrome (285343582).

The spelling of 252320330 in words is "two hundred fifty-two million, three hundred twenty thousand, three hundred thirty".

Divisors: 1 2 5 10 431 862 2155 4310 58543 117086 292715 585430 25232033 50464066 126160165 252320330