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2828381580 = 22325106914699
BaseRepresentation
bin1010100010010101…
…1010110110001100
321022010002200010100
42220211122312030
521243031202310
61144354011100
7130042563303
oct25045326614
97263080110
102828381580
111221602a42
1266b276a90
13360c8668b
141cb8d143a
15118493ec0
hexa895ad8c

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".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1069 2138 3207 4276 5345 6414 9621 10690 12828 14699 16035 19242 21380 29398 32070 38484 44097 48105 58796 64140 73495 88194 96210 132291 146990 176388 192420 220485 264582 293980 440970 529164 661455 881940 1322910 2645820 15713231 31426462 47139693 62852924 78566155 94279386 141419079 157132310 188558772 235698465 282838158 314264620 471396930 565676316 707095395 942793860 1414190790 2828381580