Base | Representation |
---|---|
bin | 1010100010010101… |
… | …1010110110001100 |
3 | 21022010002200010100 |
4 | 2220211122312030 |
5 | 21243031202310 |
6 | 1144354011100 |
7 | 130042563303 |
oct | 25045326614 |
9 | 7263080110 |
10 | 2828381580 |
11 | 1221602a42 |
12 | 66b276a90 |
13 | 360c8668b |
14 | 1cb8d143a |
15 | 118493ec0 |
hex | a895ad8c |
2828381580 has 72 divisors (see below), whose sum is σ = 8588034000. Its totient is φ = 753478272.
The previous prime is 2828381573. The next prime is 2828381603. The reversal of 2828381580 is 851838282.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185071 + ... + 199769.
It is an arithmetic number, because the mean of its divisors is an integer number (119278250).
Almost surely, 22828381580 is an apocalyptic number.
2828381580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2828381580 is an abundant number, since it is smaller than the sum of its proper divisors (5759652420).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2828381580 is a wasteful number, since it uses less digits than its factorization.
2828381580 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15783 (or 15778 counting only the distinct ones).
The product of its (nonzero) digits is 245760, while the sum is 45.
The square root of 2828381580 is about 53182.5307784427. The cubic root of 2828381580 is about 1414.2059715413.
The spelling of 2828381580 in words is "two billion, eight hundred twenty-eight million, three hundred eighty-one thousand, five hundred eighty".
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