28499137920

Names of 28499137920

• Cardinal: 28499137920 can be written as Twenty-eight billion, four hundred ninety-nine million, one hundred thirty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.849913792 × 10¹⁰

Factors of 28499137920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 449818

Divisors of 28499137920

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 32 33 36 40 44 45 48 55 60 64 66 72 80 88 90 96 99 110 120 128 132 144 160 165 176 180 192 198 220 240 264 288 320 330 352 360 384 396 440 480 495 528 576 640 660 704 720 792 880 960 990 1056 1152 1320 1408 1440 1584 1760 1920 1980 2112 2640 2880 3168 3520 3960 4224 5280 5760 6336 7040 7920 10560 12672 15840 21120 31680 63360 449797 899594 1349391 1799188 2248985 2698782 3598376 4048173 4497970 4947767 5397564 6746955 7196752 8096346 8995940 9895534 10795128 13493910 14393504 14843301 16192692 17991880 19791068 20240865 21590256 24738835 26987820 28787008 29686602 32385384 35983760 39582136 40481730 43180512 44529903 49477670 53975640 57574016 59373204 64770768 71967520 74216505 79164272 80963460 86361024 89059806 98955340 107951280 118746408 129541536 143935040 148433010 158328544 161926920 172722048 178119612 197910680 215902560 222649515 237492816 259083072 287870080 296866020 316657088 323853840 356239224 395821360 431805120 445299030 474985632 518166144 593732040 633314176 647707680 712478448 791642720 863610240 890598060 949971264 1187464080 1295415360 1424956896 1583285440 1781196120 1899942528 2374928160 2590830720 2849913792 3166570880 3562392240 4749856320 5699827584 7124784480 9499712640 14249568960 28499137920
• Sum of all divisors σ(n): 107357786640
• Sum of proper divisors (its aliquot sum) s(n): 78858648720
• 28499137920 is an abundant number, because the sum of its proper divisors (78858648720) is greater than itself. Its abundance is 50359510800

Bases of 28499137920

• Binary: 11010100010101011100101010110000000₂
• Hexadecimal: 0x6A2AE5580
• Base-36: D3BNFK0

Squares and roots of 28499137920

• 28499137920 squared (28499137920²) is 812200862183181926400
• 28499137920 cubed (28499137920³) is 23147024390101414024924889088000
• The square root of 28499137920 is 168816.8768814303
• The cube root of 28499137920 is 3054.5265733217

Scales and comparisons

• 28,499,137,920 seconds is equal to 906 years, 9 weeks, 4 days, 3 hours, 12 minutes.
• To count from 1 to 28,499,137,920 would take you about one thousand, eight hundred twelve years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 28499137920 cubic inches would be around 254.5 feet tall.

Recreational maths with 28499137920

• 28499137920 backwards is 02973199482
• The number of decimal digits it has is: 11
• The sum of 28499137920's digits is 54
• More coming soon!