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253649248 = 2517466267
BaseRepresentation
bin11110001111001…
…10000101100000
3122200021201100121
433013212011200
51004413233443
641100330024
76166661116
oct1707460540
9580251317
10253649248
111201a6486
1270b43914
134071c718
1425989ab6
15174054ed
hexf1e6160

253649248 has 24 divisors (see below), whose sum is σ = 528747912. Its totient is φ = 119364096.

The previous prime is 253649239. The next prime is 253649251. The reversal of 253649248 is 842946352.

253649248 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232590 + ... + 233677.

It is an arithmetic number, because the mean of its divisors is an integer number (22031163).

Almost surely, 2253649248 is an apocalyptic number.

It is an amenable number.

253649248 is an abundant number, since it is smaller than the sum of its proper divisors (275098664).

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

253649248 is a wasteful number, since it uses less digits than its factorization.

253649248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466294 (or 466286 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 253649248 is about 15926.3695800393. The cubic root of 253649248 is about 633.0109068580.

The spelling of 253649248 in words is "two hundred fifty-three million, six hundred forty-nine thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 466267 932534 1865068 3730136 7460272 7926539 14920544 15853078 31706156 63412312 126824624 253649248