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253244304 = 24321758641
BaseRepresentation
bin11110001100000…
…11001110010000
3122122112010212200
433012003032100
51004312304204
641043523200
76163353405
oct1706031620
9578463780
10253244304
1111aa4a215
1270989500
134060a301
14258c22ac
1517375539
hexf183390

253244304 has 30 divisors (see below), whose sum is σ = 708732726. Its totient is φ = 84414720.

The previous prime is 253244287. The next prime is 253244339. The reversal of 253244304 is 403442352.

It can be written as a sum of positive squares in only one way, i.e., 144000000 + 109244304 = 12000^2 + 10452^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 879177 + ... + 879464.

Almost surely, 2253244304 is an apocalyptic number.

253244304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

253244304 is an abundant number, since it is smaller than the sum of its proper divisors (455488422).

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

253244304 is a wasteful number, since it uses less digits than its factorization.

253244304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758655 (or 1758646 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 253244304 is about 15913.6514980064. The cubic root of 253244304 is about 632.6738659747.

Adding to 253244304 its reverse (403442352), we get a palindrome (656686656).

The spelling of 253244304 in words is "two hundred fifty-three million, two hundred forty-four thousand, three hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 1758641 3517282 5275923 7034564 10551846 14069128 15827769 21103692 28138256 31655538 42207384 63311076 84414768 126622152 253244304