21489033807990

Names of 21489033807990

• Cardinal: 21489033807990 can be written as Twenty-one trillion, four hundred eighty-nine billion, thirty-three million, eight hundred seven thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 2.148903380799 × 10¹³

Factors of 21489033807990

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 181392

Divisors of 21489033807990

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 331 571 630 662 993 1142 1655 1713 1986 2317 2855 2979 3310 3426 3997 4634 4965 5139 5710 5958 6951 7994 8565 9930 10278 11585 11991 13902 14895 17130 19985 20853 23170 23982 25695 29790 34755 35973 39970 41706 51390 59955 69510 71946 104265 119910 179865 180473 189001 208530 359730 360946 378002 541419 567003 902365 945005 1082838 1134006 1263311 1323007 1624257 1701009 1804730 1890010 2526622 2646014 2707095 2835015 3248514 3402018 3789933 3969021 5414190 5670030 6316555 6615035 7579866 7938042 8121285 8505045 11369799 11907063 12633110 13230070 16242570 17010090 18949665 19845105 22739598 23814126 37899330 39690210 56848995 59535315 59736563 103050083 113697990 119070630 119473126 179209689 206100166 298682815 309150249 358419378 418155941 515250415 537629067 597365630 618300498 721350581 836311882 896048445 927450747 1030500830 1075258134 1254467823 1442701162 1545751245 1792096890 1854901494 2090779705 2164051743 2508935646 2688145335 3091502490 3606752905 3763403469 4181559410 4328103486 4637253735 5376290670 6272339115 6492155229 7213505810 7526806938 9274507470 10820258715 12544678230 12984310458 18817017345 21640517430 32460776145 34109577473 37634034690 64921552290 68219154946 102328732419 170547887365 204657464838 238767042311 306986197257 341095774730 477534084622 511643662095 613972394514 716301126933 1023287324190 1193835211555 1432602253866 1534930986285 2148903380799 2387670423110 3069861972570 3581505634665 4297806761598 7163011269330 10744516903995 21489033807990
• Sum of all divisors σ(n): 64158558976512
• Sum of proper divisors (its aliquot sum) s(n): 42669525168522
• 21489033807990 is an abundant number, because the sum of its proper divisors (42669525168522) is greater than itself. Its abundance is 21180491360532

Bases of 21489033807990

• Binary: 100111000101101001110001110100000100001110110₂
• Hexadecimal: 0x138B4E3A0876
• Base-36: 7M7XBWCXI

Squares and roots of 21489033807990

• 21489033807990 squared (21489033807990²) is 461778574000937200187840100
• 21489033807990 cubed (21489033807990³) is 9923175388511551532781350487396222399000
• The square root of 21489033807990 is 4635626.5820264255
• The cube root of 21489033807990 is 27801.7604116089

Scales and comparisons

• 21,489,033,807,990 seconds is equal to 683,284 years, 41 weeks, 6 days, 1 hour, 46 minutes, 30 seconds.
• To count from 1 to 21,489,033,807,990 would take you about one million, seven hundred eight thousand, two 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 21489033807990 cubic inches would be around 2316.8 feet tall.

Recreational maths with 21489033807990

• 21489033807990 backwards is 09970833098412
• 21489033807990 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21489033807990's digits is 63
• More coming soon!