21440280609

Names of 21440280609

• Cardinal: 21440280609 can be written as Twenty-one billion, four hundred forty million, two hundred eighty thousand, six hundred nine.

Scientific notation

• Scientific notation: 2.1440280609 × 10¹⁰

Factors of 21440280609

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1050

Divisors of 21440280609

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 9 11 17 27 29 33 51 87 99 153 181 187 261 297 319 459 493 543 561 783 809 957 1479 1629 1683 1991 2427 2871 3077 4437 4887 5049 5249 5423 5973 7281 8613 8899 9231 13311 13753 15747 16269 17919 21843 23461 26697 27693 33847 41259 47241 48807 53757 57739 70383 80091 83079 89233 101541 123777 141723 146421 146429 151283 173217 211149 240273 258071 267699 304623 371331 398837 439287 453849 519651 633447 774213 803097 913869 981563 1196511 1317861 1361547 1558953 1610719 2322639 2409291 2489293 2944689 3589533 3953583 4084641 4246441 4387207 4832157 6967917 7467879 8834067 10768599 12739323 13161621 14496471 22403637 26502201 27382223 38217969 39484863 43489413 46710851 67210911 72189497 82146669 114653907 118454589 140132553 216568491 246440007 420397659 649705473 739320021 794084467 1261192977 1949116419 2382253401 7146760203 21440280609
• Sum of all divisors σ(n): 38211264000
• Sum of proper divisors (its aliquot sum) s(n): 16770983391
• 21440280609 is a deficient number, because the sum of its proper divisors (16770983391) is less than itself. Its deficiency is 4669297218

Bases of 21440280609

• Binary: 10011111101111100001011100000100001₂
• Hexadecimal: 0x4FDF0B821
• Base-36: 9UKZME9

Squares and roots of 21440280609

• 21440280609 squared (21440280609²) is 459685632592661410881
• 21440280609 cubed (21440280609³) is 9855788954712336843414485906529
• The square root of 21440280609 is 146424.9999453645
• The cube root of 21440280609 is 2778.0719430077

Scales and comparisons

• 21,440,280,609 seconds is equal to 681 years, 38 weeks, 1 day, 9 hours, 30 minutes, 9 seconds.
• To count from 1 to 21,440,280,609 would take you about one thousand, three hundred sixty-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 21440280609 cubic inches would be around 231.5 feet tall.

Recreational maths with 21440280609

• 21440280609 backwards is 90608204412
• The number of decimal digits it has is: 11
• The sum of 21440280609's digits is 36
• More coming soon!