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252063868 = 22733726713
BaseRepresentation
bin11110000011000…
…11000001111100
3122120022011121211
433001203001330
51004012020433
641002334204
76150336040
oct1701430174
9576264554
10252063868
1111a313351
12704ba364
13402b5c24
1425696020
15171e08cd
hexf06307c

252063868 has 24 divisors (see below), whose sum is σ = 505642592. Its totient is φ = 107702784.

The previous prime is 252063857. The next prime is 252063881. The reversal of 252063868 is 868360252.

It is a super-2 number, since 2×2520638682 = 127072387102242848, which contains 22 as substring.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 252063868.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 3921 + ... + 22792.

Almost surely, 2252063868 is an apocalyptic number.

252063868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

252063868 is an abundant number, since it is smaller than the sum of its proper divisors (253578724).

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

252063868 is a wasteful number, since it uses less digits than its factorization.

252063868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27061 (or 27059 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 252063868 is about 15876.5193918566. The cubic root of 252063868 is about 631.6893167998.

The spelling of 252063868 in words is "two hundred fifty-two million, sixty-three thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 28 337 674 1348 2359 4718 9436 26713 53426 106852 186991 373982 747964 9002281 18004562 36009124 63015967 126031934 252063868