121949669842

Names of 121949669842

• Cardinal: 121949669842 can be written as One hundred twenty-one billion, nine hundred forty-nine million, six hundred sixty-nine thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 1.21949669842 × 10¹¹

Factors of 121949669842

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5304

Divisors of 121949669842

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 7 11 13 14 22 26 67 77 91 134 143 154 181 182 286 362 469 737 871 938 1001 1267 1474 1742 1991 2002 2353 2534 3982 4706 5023 5159 6097 9581 10046 10318 12127 12194 13937 16471 19162 24254 25883 27874 32942 35161 51766 55253 65299 67067 70322 84889 110506 130598 133397 134134 157651 169778 181181 266794 315302 336541 362362 386771 457093 673082 718289 773542 909163 914186 933779 1103557 1436578 1734161 1818326 1867558 2207114 2355787 3468322 3701951 4375033 4711574 5028023 6364141 7403902 8750066 10000793 10056046 11819119 12139127 12728282 20001586 23638238 24278254 25913657 30625231 48125363 51827314 60913921 61250462 70005551 82733833 96250726 121827842 130010309 140011102 165467666 260020618 336877541 426397447 670053131 673755082 791880973 852794894 910072163 1340106262 1583761946 1820144326 4690371917 5543166811 8710690703 9380743834 11086333622 17421381406 60974834921 121949669842
• Sum of all divisors σ(n): 250697760768
• Sum of proper divisors (its aliquot sum) s(n): 128748090926
• 121949669842 is an abundant number, because the sum of its proper divisors (128748090926) is greater than itself. Its abundance is 6798421084

Bases of 121949669842

• Binary: 1110001100100110001000100100111010010₂
• Hexadecimal: 0x1C64C449D2
• Base-36: 1K0TONGY

Squares and roots of 121949669842

• 121949669842 squared (121949669842²) is 14871721974572804304964
• 121949669842 cubed (121949669842³) is 1813601584781169803982436081695688
• The square root of 121949669842 is 349212.9290876843
• The cube root of 121949669842 is 4958.9935447327

Scales and comparisons

• 121,949,669,842 seconds is equal to 3,877 years, 32 weeks, 2 days, 12 hours, 17 minutes, 22 seconds.
• To count from 1 to 121,949,669,842 would take you about seven thousand, seven hundred fifty-five 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 121949669842 cubic inches would be around 413.2 feet tall.

Recreational maths with 121949669842

• 121949669842 backwards is 248966949121
• The number of decimal digits it has is: 12
• The sum of 121949669842's digits is 61
• More coming soon!