21309699801

Names of 21309699801

• Cardinal: 21309699801 can be written as Twenty-one billion, three hundred nine million, six hundred ninety-nine thousand, eight hundred one.

Scientific notation

• Scientific notation: 2.1309699801 × 10¹⁰

Factors of 21309699801

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 887

Divisors of 21309699801

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 13 17 23 31 39 51 61 69 93 183 221 299 391 403 527 663 713 739 793 897 1037 1173 1209 1403 1581 1891 2139 2217 2379 3111 4209 5083 5673 6851 9269 9607 12121 12563 13481 15249 16997 18239 20553 22909 23851 24583 27807 28821 32147 36363 37689 40443 43493 45079 50991 54717 68727 71553 73749 96441 130479 135237 157573 163319 220961 288949 297817 310063 389453 417911 472719 489957 526907 565409 586027 662883 739381 766343 866847 893451 930189 1036817 1168359 1253733 1397449 1580721 1696227 1758081 2218143 2299029 3110451 3756337 4192347 5062889 6849791 8957419 9611953 9962459 11269011 13478621 15188667 17625889 18166837 20549373 23756633 26872257 28835859 29887377 32141327 40435863 52877667 54500511 71269899 96423981 116446447 229136557 308836229 349339341 417837251 546402559 687409671 926508687 1253511753 1639207677 7103233267 21309699801
• Sum of all divisors σ(n): 35517726720
• Sum of proper divisors (its aliquot sum) s(n): 14208026919
• 21309699801 is a deficient number, because the sum of its proper divisors (14208026919) is less than itself. Its deficiency is 7101672882

Bases of 21309699801

• Binary: 10011110110001010000011011011011001₂
• Hexadecimal: 0x4F62836D9
• Base-36: 9SF8TLL

Squares and roots of 21309699801

• 21309699801 squared (21309699801²) is 454103305608739439601
• 21309699801 cubed (21309699801³) is 9676805121163997019926281219401
• The square root of 21309699801 is 145978.4223815287
• The cube root of 21309699801 is 2772.4205579677

Scales and comparisons

• 21,309,699,801 seconds is equal to 677 years, 30 weeks, 2 days, 1 hour, 3 minutes, 21 seconds.
• To count from 1 to 21,309,699,801 would take you about one thousand, three hundred fifty-five 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 21309699801 cubic inches would be around 231 feet tall.

Recreational maths with 21309699801

• 21309699801 backwards is 10899690312
• The number of decimal digits it has is: 11
• The sum of 21309699801's digits is 48
• More coming soon!