21377293923666978

Names of 21377293923666978

• Cardinal: 21377293923666978 can be written as Twenty-one quadrillion, three hundred seventy-seven trillion, two hundred ninety-three billion, nine hundred twenty-three million, six hundred sixty-six thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 2.1377293923666978 × 10¹⁶

Factors of 21377293923666978

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1089244718

Divisors of 21377293923666978

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 11 18 22 33 66 99 121 198 242 363 726 1089 2178 9011 18022 27033 54066 81099 99121 162198 198242 297363 594726 892089 1090331 1784178 2180662 3270993 6541986 9812979 19625958 1089235691 2178471382 3267707073 6535414146 9803121219 11981592601 19606242438 23963185202 35944777803 71889555606 107834333409 131797518611 215668666818 263595037222 395392555833 790785111666 1186177667499 2372355334998 9815102811601 19630205623202 29445308434803 58890616869606 88335925304409 107966130927611 176671850608818 215932261855222 323898392782833 647796785565666 971695178348499 1187627440203721 1943390356696998 2375254880407442 3562882320611163 7125764641222326 10688646961833489 21377293923666978
• Sum of all divisors σ(n): 50916588196048848
• Sum of proper divisors (its aliquot sum) s(n): 29539294272381870
• 21377293923666978 is an abundant number, because the sum of its proper divisors (29539294272381870) is greater than itself. Its abundance is 8162000348714892

Bases of 21377293923666978

• Binary: 1001011111100101000100100011010100101000100110000100010₂
• Hexadecimal: 0x4BF2891A944C22
• Base-36: 5UHM994S10I

Squares and roots of 21377293923666978

• 21377293923666978 squared (21377293923666978²) is 456988695498849099421794247652484
• 21377293923666978 cubed (21377293923666978³) is 9769181663472045712709976358731952712765490473352
• The square root of 21377293923666978 is 146209760.0150789455
• The cube root of 21377293923666978 is 277534.8826042985

Scales and comparisons

• 21,377,293,923,666,978 seconds is equal to 679,731,822 years, 23 weeks, 6 days, 18 hours, 36 minutes, 18 seconds.
• To count from 1 to 21,377,293,923,666,978 would take you about two billion, thirty-nine million, one hundred ninety-five thousand, four hundred sixty-seven 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 21377293923666978 cubic inches would be around 23127.9 feet tall.

Recreational maths with 21377293923666978

• 21377293923666978 backwards is 87966632939277312
• The number of decimal digits it has is: 17
• The sum of 21377293923666978's digits is 90
• More coming soon!