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253968254 = 22329613121
BaseRepresentation
bin11110010001100…
…11111101111110
3122200212220221122
433020303331332
51010003441004
641111230542
76202460141
oct1710637576
9580786848
10253968254
111203a4121
1271078452
1340801997
1425a30058
1517469cbe
hexf233f7e

253968254 has 32 divisors (see below), whose sum is σ = 418098240. Its totient is φ = 115315200.

The previous prime is 253968203. The next prime is 253968289. The reversal of 253968254 is 452869352.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79814 + ... + 82934.

It is an arithmetic number, because the mean of its divisors is an integer number (13065570).

Almost surely, 2253968254 is an apocalyptic number.

253968254 is a deficient number, since it is larger than the sum of its proper divisors (164129986).

253968254 is a wasteful number, since it uses less digits than its factorization.

253968254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236.

The product of its digits is 518400, while the sum is 44.

The square root of 253968254 is about 15936.3814587879. The cubic root of 253968254 is about 633.2761677551.

The spelling of 253968254 in words is "two hundred fifty-three million, nine hundred sixty-eight thousand, two hundred fifty-four".

Divisors: 1 2 23 29 46 58 61 122 667 1334 1403 1769 2806 3121 3538 6242 40687 71783 81374 90509 143566 181018 190381 380762 2081707 4163414 4378763 5521049 8757526 11042098 126984127 253968254