21402901008

Names of 21402901008

• Cardinal: 21402901008 can be written as Twenty-one billion, four hundred two million, nine hundred one thousand and eight.

Scientific notation

• Scientific notation: 2.1402901008 × 10¹⁰

Factors of 21402901008

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 41552

Divisors of 21402901008

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 36 37 48 72 74 97 111 144 148 194 222 291 296 333 388 444 582 592 666 776 873 888 1164 1332 1552 1746 1776 2328 2664 3492 3589 4656 5328 6984 7178 10767 13968 14356 21534 28712 32301 41413 43068 57424 64602 82826 86136 124239 129204 165652 172272 248478 258408 331304 372717 496956 516816 662608 745434 993912 1490868 1532281 1987824 2981736 3064562 4017061 4596843 5963472 6129124 8034122 9193686 12051183 12258248 13790529 16068244 18387372 24102366 24516496 27581058 32136488 36153549 36774744 48204732 55162116 64272976 72307098 73549488 96409464 110324232 144614196 148631257 192818928 220648464 289228392 297262514 445893771 578456784 594525028 891787542 1189050056 1337681313 1783575084 2378100112 2675362626 3567150168 5350725252 7134300336 10701450504 21402901008
• Sum of all divisors σ(n): 62152971608
• Sum of proper divisors (its aliquot sum) s(n): 40750070600
• 21402901008 is an abundant number, because the sum of its proper divisors (40750070600) is greater than itself. Its abundance is 19347169592

Bases of 21402901008

• Binary: 10011111011101101100101101000010000₂
• Hexadecimal: 0x4FBB65A10
• Base-36: 9TYQG40

Squares and roots of 21402901008

• 21402901008 squared (21402901008²) is 458084171558247416064
• 21402901008 cubed (21402901008³) is 9804330177192858551989580992512
• The square root of 21402901008 is 146297.3034884785
• The cube root of 21402901008 is 2776.4565470629

Scales and comparisons

• 21,402,901,008 seconds is equal to 680 years, 28 weeks, 2 days, 18 hours, 16 minutes, 48 seconds.
• To count from 1 to 21,402,901,008 would take you about one thousand, three hundred sixty-one 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 21402901008 cubic inches would be around 231.4 feet tall.

Recreational maths with 21402901008

• 21402901008 backwards is 80010920412
• The number of decimal digits it has is: 11
• The sum of 21402901008's digits is 27
• More coming soon!