20821818393723

Names of 20821818393723

• Cardinal: 20821818393723 can be written as Twenty trillion, eight hundred twenty-one billion, eight hundred eighteen million, three hundred ninety-three thousand, seven hundred twenty-three.

Scientific notation

• Scientific notation: 2.0821818393723 × 10¹³

Factors of 20821818393723

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 11129

Divisors of 20821818393723

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 19 23 37 57 61 69 111 183 437 683 703 851 1159 1311 1403 2049 2109 2257 2553 3477 4209 6771 10303 12977 15709 16169 25271 26657 30909 38931 41663 42883 47127 48507 51911 75813 79971 124989 128649 155733 195757 236969 298471 381211 480149 581233 587271 628483 710907 791597 895413 958249 986309 1143633 1440447 1541531 1743699 1885449 2374791 2874747 2958927 4502411 4624593 7036949 7243009 8767853 11043427 11941177 13507233 14455109 18206731 21110847 21729027 23253871 26303559 29289089 33130281 35455213 35823531 43365327 54620193 69761613 87867267 106365639 133702031 161849827 166589207 260367113 274647071 401106093 429253889 441823549 485549481 499767621 534839033 673649047 781101339 823941213 1287761667 1325470647 1604517099 2020947141 3075146713 4946975147 5988443599 8155823891 9225440139 9872839447 10161941627 14840925441 15882393893 17965330797 24467471673 29618518341 30485824881 47647181679 113780428381 187583949493 301765483967 341341285143 365295059539 562751848479 905296451901 1095885178617 6940606131241 20821818393723
• Sum of all divisors σ(n): 31881479454720
• Sum of proper divisors (its aliquot sum) s(n): 11059661060997
• 20821818393723 is a deficient number, because the sum of its proper divisors (11059661060997) is less than itself. Its deficiency is 9762157332726

Bases of 20821818393723

• Binary: 100101110111111110101000101101100010001111011₂
• Hexadecimal: 0x12EFF516C47B
• Base-36: 7DPET2GE3

Squares and roots of 20821818393723

• 20821818393723 squared (20821818393723²) is 433548121221181451845800729
• 20821818393723 cubed (20821818393723³) is 9027260245007244866876251608589522424067
• The square root of 20821818393723 is 4563093.0730944991
• The cube root of 20821818393723 is 27510.9899407801

Scales and comparisons

• 20,821,818,393,723 seconds is equal to 662,069 years, 21 weeks, 5 days, 10 hours, 42 minutes, 3 seconds.
• To count from 1 to 20,821,818,393,723 would take you about one million, six hundred fifty-five thousand, one hundred seventy-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 20821818393723 cubic inches would be around 2292.6 feet tall.

Recreational maths with 20821818393723

• 20821818393723 backwards is 32739381812802
• 20821818393723 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 20821818393723's digits is 57
• More coming soon!