990297450073815021378

Names of 990297450073815021378

• Cardinal: 990297450073815021378 can be written as Nine hundred ninety quintillion, two hundred ninety-seven quadrillion, four hundred fifty trillion, seventy-three billion, eight hundred fifteen million, twenty-one thousand, three hundred seventy-eight.

Scientific notation

• Scientific notation: 9.90297450073815021378 × 10²⁰

Factors of 990297450073815021378

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 494289086823

Divisors of 990297450073815021378

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 9 18 27 31 54 62 67 93 134 186 201 279 402 558 603 837 1206 1674 1809 2077 3618 4154 6231 12462 17863 18693 35726 37386 53589 56079 107178 112158 160767 321534 482301 553753 964602 1107506 1196821 1661259 2393642 3322518 3590463 4983777 7180926 9967554 10771389 14951331 21542778 29902662 32314167 37101451 64628334 74202902 111304353 222608706 333913059 667826118 1001739177 2003478354 494289068857 988578137714 1482867206571 2965734413142 4448601619713 8897203239426 13345804859139 15322961134567 26691609718278 30645922269134 33117367613419 45968883403701 66234735226838 91937766807402 99352102840257 137906650211103 198704205680514 275813300422206 298056308520771 413719950633309 596112617041542 827439901266618 894168925562313 1026638396015989 1788337851124626 2053276792031978 3079915188047967 6159830376095934 8829485636992591 9239745564143901 17658971273985182 18479491128287802 26488456910977773 27719236692431703 52976913821955546 55438473384863406 79465370732933319 158930741465866638 238396112198799957 273714054746770321 476792224397599914 547428109493540642 591575537678503597 821142164240310963 1183151075357007194 1642284328480621926 1774726613035510791 2463426492720932889 3549453226071021582 4926852985441865778 5324179839106532373 7390279478162798667 10648359678213064746 14780558956325597334 15972539517319597119 18338841668033611507 31945079034639194238 36677683336067223014 55016525004100834521 110033050008201669042 165049575012302503563 330099150024605007126 495148725036907510689 990297450073815021378
• Sum of all divisors σ(n): 2305684358297829949440
• Sum of proper divisors (its aliquot sum) s(n): 1315386908224014928062
• 990297450073815021378 is an abundant number, because the sum of its proper divisors (1315386908224014928062) is greater than itself. Its abundance is 325089458150199906684

Bases of 990297450073815021378

• Binary: 1101011010111100100011010011000000010101111000111000000111011101000010₂
• Hexadecimal: 0x35AF234C0578E07742
• Base-36: 5SZTD87ZAC50SI

Squares and roots of 990297450073815021378

• 990297450073815021378 squared (990297450073815021378²) is 980689039622700154890106429581034597018884
• 990297450073815021378 cubed (990297450073815021378³) is 971173855253698507927197328430000247129797747408106537529702152
• The square root of 990297450073815021378 is 31468991882.0704363119
• The cube root of 990297450073815021378 is 9967553.0000000011

Scales and comparisons

• 990,297,450,073,815,021,378 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 990,297,450,073,815,021,378 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 990297450073815021378 cubic inches would be around 830629.4 feet tall.

Recreational maths with 990297450073815021378

• 990297450073815021378 backwards is 873120518370054792099
• The number of decimal digits it has is: 21
• The sum of 990297450073815021378's digits is 90
• More coming soon!