21808965120

Names of 21808965120

• Cardinal: 21808965120 can be written as Twenty-one billion, eight hundred eight million, nine hundred sixty-five thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.180896512 × 10¹⁰

Factors of 21808965120

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 761

Divisors of 21808965120

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 29 30 32 40 48 58 60 64 80 87 96 116 120 128 145 160 174 181 192 232 240 256 290 320 348 362 384 435 464 480 512 541 543 580 640 696 724 768 870 905 928 960 1082 1086 1160 1280 1392 1448 1536 1623 1740 1810 1856 1920 2164 2172 2320 2560 2705 2715 2784 2896 3246 3480 3620 3712 3840 4328 4344 4640 5249 5410 5430 5568 5792 6492 6960 7240 7424 7680 8115 8656 8688 9280 10498 10820 10860 11136 11584 12984 13920 14480 14848 15689 15747 16230 17312 17376 18560 20996 21640 21720 22272 23168 25968 26245 27840 28960 31378 31494 32460 34624 34752 37120 41992 43280 43440 44544 46336 47067 51936 52490 55680 57920 62756 62988 64920 69248 69504 74240 78445 78735 83984 86560 86880 92672 94134 97921 103872 104980 111360 115840 125512 125976 129840 138496 139008 156890 157470 167968 173120 173760 188268 195842 207744 209960 222720 231680 235335 251024 251952 259680 276992 278016 293763 313780 314940 335936 346240 347520 376536 391684 415488 419920 463360 470670 489605 502048 503904 519360 587526 627560 629880 671872 692480 695040 753072 783368 830976 839840 941340 979210 1004096 1007808 1038720 1175052 1255120 1259760 1343744 1384960 1390080 1468815 1506144 1566736 1679680 1882680 1958420 2008192 2015616 2077440 2350104 2510240 2519520 2687488 2839709 2937630 3012288 3133472 3359360 3765360 3916840 4016384 4031232 4154880 4700208 5020480 5039040 5679418 5875260 6024576 6266944 6718720 7530720 7833680 8032768 8062464 8519127 9400416 10040960 10078080 11358836 11750520 12049152 12533888 13437440 14198545 15061440 15667360 17038254 18800832 20081920 20156160 22717672 23501040 24098304 25067776 28397090 30122880 31334720 34076508 37601664 40163840 40312320 42595635 45435344 47002080 50135552 56794180 60245760 62669440 68153016 75203328 85191270 90870688 94004160 113588360 120491520 125338880 136306032 150406656 170382540 181741376 188008320 227176720 250677760 272612064 340765080 363482752 376016640 454353440 545224128 681530160 726965504 752033280 908706880 1090448256 1363060320 1453931008 1817413760 2180896512 2726120640 3634827520 4361793024 5452241280 7269655040 10904482560 21808965120
• Sum of all divisors σ(n): 72657224640
• Sum of proper divisors (its aliquot sum) s(n): 50848259520
• 21808965120 is an abundant number, because the sum of its proper divisors (50848259520) is greater than itself. Its abundance is 29039294400

Bases of 21808965120

• Binary: 10100010011111010100110011000000000₂
• Hexadecimal: 0x513EA6600
• Base-36: A0OHT6O

Squares and roots of 21808965120

• 21808965120 squared (21808965120²) is 475630959605376614400
• 21808965120 cubed (21808965120³) is 10373019008025787547913289728000
• The square root of 21808965120 is 147678.5872088435
• The cube root of 21808965120 is 2793.9053285809

Scales and comparisons

• 21,808,965,120 seconds is equal to 693 years, 23 weeks, 5 days, 13 hours, 52 minutes.
• To count from 1 to 21,808,965,120 would take you about one thousand, three hundred eighty-six 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 21808965120 cubic inches would be around 232.8 feet tall.

Recreational maths with 21808965120

• 21808965120 backwards is 02156980812
• The number of decimal digits it has is: 11
• The sum of 21808965120's digits is 42
• More coming soon!