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253885368 = 23311961687
BaseRepresentation
bin11110010000111…
…11101110111000
3122200201201020210
433020133232320
51004443312433
641105351120
76201663402
oct1710375670
9580651223
10253885368
11120347920
12710384a0
13407a3039
1425a0bb72
1517450463
hexf21fbb8

253885368 has 32 divisors (see below), whose sum is σ = 692415360. Its totient is φ = 76934880.

The previous prime is 253885367. The next prime is 253885369. The reversal of 253885368 is 863588352.

It is an interprime number because it is at equal distance from previous prime (253885367) and next prime (253885369).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253885363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480580 + ... + 481107.

It is an arithmetic number, because the mean of its divisors is an integer number (21637980).

Almost surely, 2253885368 is an apocalyptic number.

It is an amenable number.

253885368 is an abundant number, since it is smaller than the sum of its proper divisors (438529992).

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

253885368 is a wasteful number, since it uses less digits than its factorization.

253885368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961707 (or 961703 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The square root of 253885368 is about 15933.7807189631. The cubic root of 253885368 is about 633.2072674904.

The spelling of 253885368 in words is "two hundred fifty-three million, eight hundred eighty-five thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 961687 1923374 2885061 3846748 5770122 7693496 10578557 11540244 21157114 23080488 31735671 42314228 63471342 84628456 126942684 253885368