21289317049

Names of 21289317049

• Cardinal: 21289317049 can be written as Twenty-one billion, two hundred eighty-nine million, three hundred seventeen thousand and forty-nine.

Scientific notation

• Scientific notation: 2.1289317049 × 10¹⁰

Factors of 21289317049

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 79

Divisors of 21289317049

• Number of divisors d(n): 120
• Complete list of divisors:
  1 7 11 13 19 29 77 91 121 133 143 203 209 247 319 377 551 841 847 1001 1331 1463 1573 1729 2233 2299 2639 2717 3509 3857 4147 5887 6061 7163 9251 9317 10933 11011 14641 15979 16093 17303 19019 24563 25289 29029 29887 38599 42427 45617 50141 64757 66671 76531 78793 101761 102487 111853 120263 121121 175769 177023 190333 207727 209209 270193 278179 319319 328757 424589 466697 501787 551551 712327 733381 841841 866723 1119371 1230383 1322893 1332331 1454089 1933459 1947253 2284997 2301299 2972123 3512509 3616327 5133667 5519657 6067061 7835597 8067191 9260251 9533953 12313081 13534213 14551823 15994979 21268049 25134967 25314289 38637599 56470337 66737671 86191567 101862761 104873483 148876343 160070053 175944769 233948539 276484637 734114381 1120490371 1637639773 1935392459 3041331007 21289317049
• Sum of all divisors σ(n): 31421499200
• Sum of proper divisors (its aliquot sum) s(n): 10132182151
• 21289317049 is a deficient number, because the sum of its proper divisors (10132182151) is less than itself. Its deficiency is 11157134898

Bases of 21289317049

• Binary: 10011110100111100010011001010111001₂
• Hexadecimal: 0x4F4F132B9
• Base-36: 9S33Y61

Squares and roots of 21289317049

• 21289317049 squared (21289317049²) is 453235020412842068401
• 21289317049 cubed (21289317049³) is 9649064047278981665353833468649
• The square root of 21289317049 is 145908.5914159959
• The cube root of 21289317049 is 2771.5363348527

Scales and comparisons

• 21,289,317,049 seconds is equal to 676 years, 48 weeks, 4 days, 3 hours, 10 minutes, 49 seconds.
• To count from 1 to 21,289,317,049 would take you about one thousand, three hundred fifty-three 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 21289317049 cubic inches would be around 231 feet tall.

Recreational maths with 21289317049

• 21289317049 backwards is 94071398212
• The number of decimal digits it has is: 11
• The sum of 21289317049's digits is 46
• More coming soon!