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253968214 = 2598325931
BaseRepresentation
bin11110010001100…
…11111101010110
3122200212220220011
433020303331112
51010003440324
641111230434
76202460053
oct1710637526
9580786804
10253968214
111203a4095
127107841a
1340801966
1425a3002a
1517469c94
hexf233f56

253968214 has 16 divisors (see below), whose sum is σ = 392091840. Its totient is φ = 123323080.

The previous prime is 253968203. The next prime is 253968289. The reversal of 253968214 is 412869352.

It is a congruent number.

It is an unprimeable number.

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, 3172 + ... + 22759.

It is an arithmetic number, because the mean of its divisors is an integer number (24505740).

Almost surely, 2253968214 is an apocalyptic number.

253968214 is a deficient number, since it is larger than the sum of its proper divisors (138123626).

253968214 is a wasteful number, since it uses less digits than its factorization.

253968214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26075.

The product of its digits is 103680, while the sum is 40.

The square root of 253968214 is about 15936.3802037978. The cubic root of 253968214 is about 633.2761345081.

The spelling of 253968214 in words is "two hundred fifty-three million, nine hundred sixty-eight thousand, two hundred fourteen".

Divisors: 1 2 59 83 118 166 4897 9794 25931 51862 1529929 2152273 3059858 4304546 126984107 253968214