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253966888 = 2374535123
BaseRepresentation
bin11110010001100…
…11101000101000
3122200212212002001
433020303220220
51010003420023
641111220344
76202453150
oct1710635050
9580785061
10253966888
111203a309a
12710776b4
1340801186
1425a2d760
15174696ad
hexf233a28

253966888 has 16 divisors (see below), whose sum is σ = 544214880. Its totient is φ = 108842928.

The previous prime is 253966883. The next prime is 253966931. The reversal of 253966888 is 888669352.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (253966883) by changing a digit.

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, 2267506 + ... + 2267617.

It is an arithmetic number, because the mean of its divisors is an integer number (34013430).

Almost surely, 2253966888 is an apocalyptic number.

253966888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

253966888 is an abundant number, since it is smaller than the sum of its proper divisors (290247992).

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

253966888 is a wasteful number, since it uses less digits than its factorization.

253966888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535136 (or 4535132 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 55.

The square root of 253966888 is about 15936.3386008205. The cubic root of 253966888 is about 633.2750323680.

The spelling of 253966888 in words is "two hundred fifty-three million, nine hundred sixty-six thousand, eight hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 4535123 9070246 18140492 31745861 36280984 63491722 126983444 253966888