21478950729873

Names of 21478950729873

• Cardinal: 21478950729873 can be written as Twenty-one trillion, four hundred seventy-eight billion, nine hundred fifty million, seven hundred twenty-nine thousand, eight hundred seventy-three.

Scientific notation

• Scientific notation: 2.1478950729873 × 10¹³

Factors of 21478950729873

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2743

Divisors of 21478950729873

• Number of divisors d(n): 180
• Complete list of divisors:
  1 3 7 9 13 21 27 31 39 63 81 91 93 117 169 189 217 273 279 351 403 507 567 651 819 837 1053 1183 1209 1521 1953 2457 2511 2689 2821 3549 3627 4563 5239 5859 7371 8067 8463 10647 10881 13689 15717 17577 18823 24201 25389 31941 32643 34957 36673 47151 56469 72603 76167 83359 95823 104871 110019 141453 169407 217809 228501 244699 250077 314613 330057 424359 454441 508221 583513 734097 750231 943839 990171 1083667 1363323 1524663 1750539 2202291 2250693 2831517 2970513 3181087 3251001 4089969 5251617 6606873 6752079 7230721 7585669 9543261 9753003 12269907 14087671 15754851 19820619 21692163 22757007 28629783 29259009 36809721 42263013 47264553 50615047 65076489 68271021 85889349 87777027 93999373 98613697 126789039 151845141 195229467 204813063 224152351 257668047 281998119 295841091 380367117 455535423 585688401 614439189 657995611 672457053 845994357 887523273 1141101351 1221991849 1366606269 1569066457 1973986833 2017371159 2537983071 2662569819 2913980563 3665975547 4099818807 4707199371 5921960499 6052113477 7613949213 7987709457 8553942943 8741941689 10997926641 14121598113 17765881497 18156340431 20397863941 25661828829 26225825067 32993779923 37881747319 42364794339 53297644491 61193591823 76985486487 78677475201 98981339769 113645241957 127094383017 183580775469 230956459461 236032425603 265172231233 340935725871 550742326407 692869378383 795516693699 1022807177613 1652226979221 2386550081097 3068421532839 7159650243291 21478950729873
• Sum of all divisors σ(n): 41003371461888
• Sum of proper divisors (its aliquot sum) s(n): 19524420732015
• 21478950729873 is a deficient number, because the sum of its proper divisors (19524420732015) is less than itself. Its deficiency is 1954529997858

Bases of 21478950729873

• Binary: 100111000100011110101001110100111100010010001₂
• Hexadecimal: 0x1388F53A7891
• Base-36: 7M3AKP029

Squares and roots of 21478950729873

• 21478950729873 squared (21478950729873²) is 461345324456311879414596129
• 21478950729873 cubed (21478950729873³) is 9909213493454396039253859888954070461617
• The square root of 21478950729873 is 4634538.8907498661
• The cube root of 21478950729873 is 27797.4113533715

Scales and comparisons

• 21,478,950,729,873 seconds is equal to 682,964 years, 10 weeks, 18 hours, 44 minutes, 33 seconds.
• To count from 1 to 21,478,950,729,873 would take you about one million, seven hundred seven thousand, four hundred ten 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 21478950729873 cubic inches would be around 2316.5 feet tall.

Recreational maths with 21478950729873

• 21478950729873 backwards is 37892705987412
• The number of decimal digits it has is: 14
• The sum of 21478950729873's digits is 72
• More coming soon!