21901040100

Names of 21901040100

• Cardinal: 21901040100 can be written as Twenty-one billion, nine hundred one million, forty thousand, one hundred.

Scientific notation

• Scientific notation: 2.19010401 × 10¹⁰

Factors of 21901040100

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4943

Divisors of 21901040100

• Number of divisors d(n): 81
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 90 100 150 180 225 300 450 900 4933 9866 14799 19732 24665 29598 44397 49330 59196 73995 88794 98660 123325 147990 177588 221985 246650 295980 369975 443970 493300 739950 887940 1109925 1479900 2219850 4439700 24334489 48668978 73003467 97337956 121672445 146006934 219010401 243344890 292013868 365017335 438020802 486689780 608362225 730034670 876041604 1095052005 1216724450 1460069340 1825086675 2190104010 2433448900 3650173350 4380208020 5475260025 7300346700 10950520050 21901040100
• Sum of all divisors σ(n): 68661512283
• Sum of proper divisors (its aliquot sum) s(n): 46760472183
• 21901040100 is an abundant number, because the sum of its proper divisors (46760472183) is greater than itself. Its abundance is 24859432083

Bases of 21901040100

• Binary: 10100011001011001110101100111100100₂
• Hexadecimal: 0x5196759E4
• Base-36: A27BAP0

Squares and roots of 21901040100

• 21901040100 squared (21901040100²) is 479655557461808010000
• 21901040100 cubed (21901040100³) is 10504955598158911445511201000000
• 21901040100 is a perfect square number. Its square root is 147990
• The cube root of 21901040100 is 2797.8316588387

Scales and comparisons

• 21,901,040,100 seconds is equal to 696 years, 20 weeks, 6 hours, 15 minutes.
• To count from 1 to 21,901,040,100 would take you about one thousand, three hundred ninety-two 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 21901040100 cubic inches would be around 233.2 feet tall.

Recreational maths with 21901040100

• 21901040100 backwards is 00104010912
• 21901040100 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21901040100's digits is 18
• More coming soon!