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268119780 = 22354468663
BaseRepresentation
bin11111111101100…
…10111011100100
3200200111220012020
433332302323210
51022114313110
642334423140
76433660215
oct1776627344
9620456166
10268119780
1112838a3a5
1275961ab0
1343718076
142787540c
1518812d70
hexffb2ee4

268119780 has 24 divisors (see below), whose sum is σ = 750735552. Its totient is φ = 71498592.

The previous prime is 268119779. The next prime is 268119799. The reversal of 268119780 is 87911862.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2234272 + ... + 2234391.

It is an arithmetic number, because the mean of its divisors is an integer number (31280648).

Almost surely, 2268119780 is an apocalyptic number.

268119780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268119780 is an abundant number, since it is smaller than the sum of its proper divisors (482615772).

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

268119780 is a wasteful number, since it uses less digits than its factorization.

268119780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4468675 (or 4468673 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 268119780 is about 16374.3634990799. The cubic root of 268119780 is about 644.8266104453.

The spelling of 268119780 in words is "two hundred sixty-eight million, one hundred nineteen thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4468663 8937326 13405989 17874652 22343315 26811978 44686630 53623956 67029945 89373260 134059890 268119780