21388410498

Names of 21388410498

• Cardinal: 21388410498 can be written as Twenty-one billion, three hundred eighty-eight million, four hundred ten thousand, four hundred ninety-eight.

Scientific notation

• Scientific notation: 2.1388410498 × 10¹⁰

Factors of 21388410498

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1328

Divisors of 21388410498

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 7 13 14 17 21 26 34 39 42 51 78 91 102 119 157 169 182 221 238 273 314 338 357 442 471 507 546 663 714 942 1014 1099 1129 1183 1326 1547 2041 2198 2258 2366 2669 2873 3094 3297 3387 3549 4082 4641 5338 5746 6123 6594 6774 7098 7903 8007 8619 9282 12246 14287 14677 15806 16014 17238 18683 19193 20111 23709 26533 28574 29354 34697 37366 38386 40222 42861 44031 47418 53066 56049 57579 60333 69394 79599 85722 88062 102739 104091 112098 115158 120666 134351 159198 177253 185731 190801 205478 208182 242879 249509 268702 308217 354506 371462 381602 403053 451061 485758 499018 531759 557193 572403 616434 728637 748527 806106 902122 1063518 1114386 1144806 1240771 1335607 1353183 1457274 1497054 1746563 2304289 2481542 2671214 2706366 3013301 3157427 3243617 3493126 3722313 4006821 4608578 5239689 6026602 6314854 6487234 6912867 7444626 8013642 9039903 9472281 9730851 10479378 13825734 16130023 18079806 18944562 19461702 21093107 22705319 29955757 32260046 39172913 42186214 45410638 48390069 59911514 63279321 68115957 78345826 89867271 96780138 117518739 126558642 136231914 179734542 209690299 235037478 274210391 419380598 509247869 548420782 629070897 822631173 1018495738 1258141794 1527743607 1645262346 3055487214 3564735083 7129470166 10694205249 21388410498
• Sum of all divisors σ(n): 56458632960
• Sum of proper divisors (its aliquot sum) s(n): 35070222462
• 21388410498 is an abundant number, because the sum of its proper divisors (35070222462) is greater than itself. Its abundance is 13681811964

Bases of 21388410498

• Binary: 10011111010110110010011111010000010₂
• Hexadecimal: 0x4FAD93E82
• Base-36: 9TQ3V5U

Squares and roots of 21388410498

• 21388410498 squared (21388410498²) is 457464103630956608004
• 21388410498 cubed (21388410498³) is 9784430036558512232415224425992
• The square root of 21388410498 is 146247.7709163459
• The cube root of 21388410498 is 2775.8298196501

Scales and comparisons

• 21,388,410,498 seconds is equal to 680 years, 4 weeks, 3 days, 1 hour, 8 minutes, 18 seconds.
• To count from 1 to 21,388,410,498 would take you about one thousand, three hundred sixty 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 21388410498 cubic inches would be around 231.3 feet tall.

Recreational maths with 21388410498

• 21388410498 backwards is 89401488312
• The number of decimal digits it has is: 11
• The sum of 21388410498's digits is 48
• More coming soon!