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252868 = 22711821
BaseRepresentation
bin111101101111000100
3110211212111
4331233010
531042433
65230404
72102140
oct755704
9424774
10252868
11162a90
12102404
138b135
1468220
154edcd
hex3dbc4

252868 has 24 divisors (see below), whose sum is σ = 552384. Its totient is φ = 98400.

The previous prime is 252829. The next prime is 252869. The reversal of 252868 is 868252.

It is not an unprimeable number, because it can be changed into a prime (252869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103 + ... + 718.

It is an arithmetic number, because the mean of its divisors is an integer number (23016).

2252868 is an apocalyptic number.

252868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

252868 is an abundant number, since it is smaller than the sum of its proper divisors (299516).

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

252868 is a wasteful number, since it uses less digits than its factorization.

252868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 841 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 252868 is about 502.8598214214. The cubic root of 252868 is about 63.2360340362.

The spelling of 252868 in words is "two hundred fifty-two thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 821 1642 3284 5747 9031 11494 18062 22988 36124 63217 126434 252868