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868304280 = 233523314603
BaseRepresentation
bin110011110000010…
…100010110011000
32020111212102112210
4303300110112120
53234241214110
6222054435120
730342315234
oct6360242630
92214772483
10868304280
11406153948
12202962aa0
1310ab7991c
14834695c4
155136a520
hex33c14598

868304280 has 64 divisors (see below), whose sum is σ = 2718178560. Its totient is φ = 221479808.

The previous prime is 868304263. The next prime is 868304299. The reversal of 868304280 is 82403868.

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 15 ways as a sum of consecutive naturals, for example, 154542 + ... + 160061.

It is an arithmetic number, because the mean of its divisors is an integer number (42471540).

Almost surely, 2868304280 is an apocalyptic number.

It is an amenable number.

868304280 is an abundant number, since it is smaller than the sum of its proper divisors (1849874280).

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

868304280 is a wasteful number, since it uses less digits than its factorization.

868304280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314640 (or 314636 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 868304280 is about 29467.0032409134. The cubic root of 868304280 is about 954.0196366531.

The spelling of 868304280 in words is "eight hundred sixty-eight million, three hundred four thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 23 24 30 40 46 60 69 92 115 120 138 184 230 276 345 460 552 690 920 1380 2760 314603 629206 943809 1258412 1573015 1887618 2516824 3146030 3775236 4719045 6292060 7235869 7550472 9438090 12584120 14471738 18876180 21707607 28943476 36179345 37752360 43415214 57886952 72358690 86830428 108538035 144717380 173660856 217076070 289434760 434152140 868304280