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253234304 = 271978393
BaseRepresentation
bin11110001100000…
…00110010000000
3122122111122011022
433012000302000
51004311444204
641043405012
76163312301
oct1706006200
9578448138
10253234304
1111aa42754
1270983768
13406058ab
14258bc7a8
15173725be
hexf180c80

253234304 has 16 divisors (see below), whose sum is σ = 504490470. Its totient is φ = 126617088.

The previous prime is 253234283. The next prime is 253234309. The reversal of 253234304 is 403432352.

It can be written as a sum of positive squares in only one way, i.e., 211760704 + 41473600 = 14552^2 + 6440^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×2532343042 = 128255225444728832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (253234309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 989069 + ... + 989324.

Almost surely, 2253234304 is an apocalyptic number.

It is an amenable number.

253234304 is a deficient number, since it is larger than the sum of its proper divisors (251256166).

253234304 is an equidigital number, since it uses as much as digits as its factorization.

253234304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978407 (or 1978395 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 253234304 is about 15913.3372992594. The cubic root of 253234304 is about 632.6655382824.

Adding to 253234304 its reverse (403432352), we get a palindrome (656666656).

The spelling of 253234304 in words is "two hundred fifty-three million, two hundred thirty-four thousand, three hundred four".

Divisors: 1 2 4 8 16 32 64 128 1978393 3956786 7913572 15827144 31654288 63308576 126617152 253234304