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250289920 = 285195539
BaseRepresentation
bin11101110101100…
…01111100000000
3122102222001020001
432322301330000
51003033234140
640500325344
76126300136
oct1672617400
9572861201
10250289920
11119311581
126b9a3854
133cb1465a
1425353756
1516e8ee9a
hexeeb1f00

250289920 has 36 divisors (see below), whose sum is σ = 599525640. Its totient is φ = 100115456.

The previous prime is 250289891. The next prime is 250289951. The reversal of 250289920 is 29982052.

It is a happy number.

250289920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 250289920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96490 + ... + 99049.

It is an arithmetic number, because the mean of its divisors is an integer number (16653490).

Almost surely, 2250289920 is an apocalyptic number.

250289920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250289920 is an abundant number, since it is smaller than the sum of its proper divisors (349235720).

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

250289920 is an equidigital number, since it uses as much as digits as its factorization.

250289920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195560 (or 195546 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 250289920 is about 15820.5537197659. The cubic root of 250289920 is about 630.2039484144.

The spelling of 250289920 in words is "two hundred fifty million, two hundred eighty-nine thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 195539 391078 782156 977695 1564312 1955390 3128624 3910780 6257248 7821560 12514496 15643120 25028992 31286240 50057984 62572480 125144960 250289920