221729981990

Names of 221729981990

• Cardinal: 221729981990 can be written as Two hundred twenty-one billion, seven hundred twenty-nine million, nine hundred eighty-one thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 2.2172998199 × 10¹¹

Factors of 221729981990

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 258

Divisors of 221729981990

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 5 10 11 22 55 110 113 121 127 226 242 254 565 605 635 1130 1210 1243 1270 1397 2486 2794 6215 6985 12430 12769 13673 13970 14351 15367 25538 27346 28702 30734 63845 68365 71755 76835 127690 136730 140459 143510 153670 157861 280918 315722 702295 789305 1404590 1442897 1545049 1578610 1621663 1736471 2885794 3090098 3243326 3472942 7214485 7725245 8108315 8682355 14428970 15450490 15871867 16216630 17364710 17838293 31743734 35676586 79359335 89191465 158718670 174590537 178382930 183247919 196221223 349181074 366495838 392442446 872952685 916239595 981106115 1745905370 1832479190 1962212230 2015727109 4031454218 10078635545 20157271090 22172998199 44345996398 110864990995 221729981990
• Sum of all divisors σ(n): 446097576960
• Sum of proper divisors (its aliquot sum) s(n): 224367594970
• 221729981990 is an abundant number, because the sum of its proper divisors (224367594970) is greater than itself. Its abundance is 2637612980

Bases of 221729981990

• Binary: 11001110100000001000110000011000100110₂
• Hexadecimal: 0x33A0230626
• Base-36: 2TV0B12E

Squares and roots of 221729981990

• 221729981990 squared (221729981990²) is 49164184913285724360100
• 221729981990 cubed (221729981990³) is 10901173835375873374089077274599000
• The square root of 221729981990 is 470882.1317378691
• The cube root of 221729981990 is 6052.5930372227

Scales and comparisons

• 221,729,981,990 seconds is equal to 7,050 years, 17 weeks, 5 hours, 39 minutes, 50 seconds.
• To count from 1 to 221,729,981,990 would take you about fourteen thousand, one hundred 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 221729981990 cubic inches would be around 504.4 feet tall.

Recreational maths with 221729981990

• 221729981990 backwards is 099189927122
• The number of decimal digits it has is: 12
• The sum of 221729981990's digits is 59
• More coming soon!