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252310816 = 257884713
BaseRepresentation
bin11110000100111…
…11010100100000
3122120202201101001
433002133110200
51004042421231
641011521344
76152415022
oct1702372440
9576681331
10252310816
1111a47193a
12705b9254
1340371454
142571c012
151723db61
hexf09f520

252310816 has 12 divisors (see below), whose sum is σ = 496736982. Its totient is φ = 126155392.

The previous prime is 252310801. The next prime is 252310837. The reversal of 252310816 is 618013252.

252310816 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 148352400 + 103958416 = 12180^2 + 10196^2 .

It is a super-3 number, since 3×2523108163 (a number of 26 digits) contains 333 as substring.

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 as a sum of consecutive naturals, namely, 3942325 + ... + 3942388.

Almost surely, 2252310816 is an apocalyptic number.

It is an amenable number.

252310816 is a deficient number, since it is larger than the sum of its proper divisors (244426166).

252310816 is an equidigital number, since it uses as much as digits as its factorization.

252310816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7884723 (or 7884715 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 252310816 is about 15884.2946333792. The cubic root of 252310816 is about 631.8955390027.

The spelling of 252310816 in words is "two hundred fifty-two million, three hundred ten thousand, eight hundred sixteen".

Divisors: 1 2 4 8 16 32 7884713 15769426 31538852 63077704 126155408 252310816