21262467138

Names of 21262467138

• Cardinal: 21262467138 can be written as Twenty-one billion, two hundred sixty-two million, four hundred sixty-seven thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 2.1262467138 × 10¹⁰

Factors of 21262467138

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2852

Divisors of 21262467138

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 11 22 29 33 37 58 66 74 87 111 113 174 222 226 319 339 407 638 678 814 957 1073 1221 1243 1914 2146 2442 2486 2657 3219 3277 3729 4181 5314 6438 6554 7458 7971 8362 9831 11803 12543 15942 19662 23606 25086 29227 35409 36047 45991 58454 70818 72094 77053 87681 91982 98309 108141 121249 137973 154106 175362 196618 216282 231159 242498 275946 294927 300241 363747 462318 589854 600482 727494 847583 900723 1081399 1333739 1695166 1801446 2162798 2542749 2667478 2850961 3244197 3302651 4001217 5085498 5701922 6488394 6605302 8002434 8552883 8706989 9907953 11108917 17105766 17413978 19815906 22217834 26120967 31360571 33326751 52241934 62721142 66653502 94081713 95776879 122198087 188163426 191553758 244396174 287330637 322158593 366594261 574661274 644317186 733188522 966475779 1932951558 3543744523 7087489046 10631233569 21262467138
• Sum of all divisors σ(n): 49742449920
• Sum of proper divisors (its aliquot sum) s(n): 28479982782
• 21262467138 is an abundant number, because the sum of its proper divisors (28479982782) is greater than itself. Its abundance is 7217515644

Bases of 21262467138

• Binary: 10011110011010101111000000001000010₂
• Hexadecimal: 0x4F3578042
• Base-36: 9RN4GN6

Squares and roots of 21262467138

• 21262467138 squared (21262467138²) is 452092508794529911044
• 21262467138 cubed (21262467138³) is 9612602111579668227731113272072
• The square root of 21262467138 is 145816.5530315403
• The cube root of 21262467138 is 2770.3706984327

Scales and comparisons

• 21,262,467,138 seconds is equal to 676 years, 4 weeks, 1 day, 8 hours, 52 minutes, 18 seconds.
• To count from 1 to 21,262,467,138 would take you about one thousand, three hundred fifty-two 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 21262467138 cubic inches would be around 230.9 feet tall.

Recreational maths with 21262467138

• 21262467138 backwards is 83176426212
• The number of decimal digits it has is: 11
• The sum of 21262467138's digits is 42
• More coming soon!