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268304286880 = 2557239557399
BaseRepresentation
bin1111100111100000101…
…1101000010010100000
3221122112120211222021101
43321320023220102200
513343441344140010
6323131324004144
725245554544430
oct3717013502240
9848476758241
10268304286880
11a3872858973
1243bba690654
131c3bb35b586
14cdb380a2c0
156ea4c7b73a
hex3e782e84a0

268304286880 has 48 divisors (see below), whose sum is σ = 724421577600. Its totient is φ = 91990040832.

The previous prime is 268304286823. The next prime is 268304286889. The reversal of 268304286880 is 88682403862.

It is not an unprimeable number, because it can be changed into a prime (268304286889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119777580 + ... + 119779819.

It is an arithmetic number, because the mean of its divisors is an integer number (15092116200).

Almost surely, 2268304286880 is an apocalyptic number.

268304286880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268304286880 is an abundant number, since it is smaller than the sum of its proper divisors (456117290720).

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

268304286880 is a wasteful number, since it uses less digits than its factorization.

268304286880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239557421 (or 239557413 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 55.

The spelling of 268304286880 in words is "two hundred sixty-eight billion, three hundred four million, two hundred eighty-six thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 560 1120 239557399 479114798 958229596 1197786995 1676901793 1916459192 2395573990 3353803586 3832918384 4791147980 6707607172 7665836768 8384508965 9582295960 13415214344 16769017930 19164591920 26830428688 33538035860 38329183840 53660857376 67076071720 134152143440 268304286880