28993078920

Names of 28993078920

• Cardinal: 28993078920 can be written as Twenty-eight billion, nine hundred ninety-three million, seventy-eight thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.899307892 × 10¹⁰

Factors of 28993078920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 11407

Divisors of 28993078920

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 127 130 156 169 195 254 260 312 338 381 390 507 508 520 635 676 762 780 845 1014 1016 1270 1352 1524 1560 1651 1690 1905 2028 2535 2540 3048 3302 3380 3810 4056 4953 5070 5080 6604 6760 7620 8255 9906 10140 11257 13208 15240 16510 19812 20280 21463 22514 24765 33020 33771 39624 42926 45028 49530 56285 64389 66040 67542 85852 90056 99060 107315 112570 128778 135084 146341 168855 171704 198120 214630 225140 257556 270168 292682 321945 337710 429260 439023 450280 515112 585364 643890 675420 731705 858520 878046 1170728 1287780 1350840 1429639 1463410 1756092 1902433 2195115 2575560 2859278 2926820 3512184 3804866 4288917 4390230 5707299 5718556 5853640 7148195 7609732 8577834 8780460 9512165 11414598 11437112 14296390 15219464 17155668 17560920 18585307 19024330 21444585 22829196 28536495 28592780 34311336 37170614 38048660 42889170 45658392 55755921 57072990 57185560 74341228 76097320 85778340 92926535 111511842 114145980 148682456 171556680 185853070 223023684 228291960 241608991 278779605 371706140 446047368 483217982 557559210 724826973 743412280 966435964 1115118420 1208044955 1449653946 1932871928 2230236840 2416089910 2899307892 3624134865 4832179820 5798615784 7248269730 9664359640 14496539460 28993078920
• Sum of all divisors σ(n): 94934661120
• Sum of proper divisors (its aliquot sum) s(n): 65941582200
• 28993078920 is an abundant number, because the sum of its proper divisors (65941582200) is greater than itself. Its abundance is 36948503280

Bases of 28993078920

• Binary: 11011000000000111110100011010001000₂
• Hexadecimal: 0x6C01F4688
• Base-36: DBHQAVC

Squares and roots of 28993078920

• 28993078920 squared (28993078920²) is 840598625261348366400
• 28993078920 cubed (28993078920³) is 24371542282245778812648276288000
• The square root of 28993078920 is 170273.5414560935
• The cube root of 28993078920 is 3072.0723953141

Scales and comparisons

• 28,993,078,920 seconds is equal to 921 years, 46 weeks, 2 days, 1 hour, 2 minutes.
• To count from 1 to 28,993,078,920 would take you about one thousand, eight hundred forty-three 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 28993078920 cubic inches would be around 256 feet tall.

Recreational maths with 28993078920

• 28993078920 backwards is 02987039982
• The number of decimal digits it has is: 11
• The sum of 28993078920's digits is 57
• More coming soon!