21098029940

Names of 21098029940

• Cardinal: 21098029940 can be written as Twenty-one billion, ninety-eight million, twenty-nine thousand, nine hundred forty.

Scientific notation

• Scientific notation: 2.109802994 × 10¹⁰

Factors of 21098029940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2255

Divisors of 21098029940

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 13 20 26 52 65 127 130 254 260 367 508 635 734 1270 1468 1651 1741 1835 2540 3302 3482 3670 4771 6604 6964 7340 8255 8705 9542 16510 17410 19084 22633 23855 33020 34820 45266 46609 47710 90532 93218 95420 113165 186436 221107 226330 233045 442214 452660 466090 605917 638947 884428 932180 1105535 1211834 1277894 2211070 2423668 2555788 2874391 3029585 3194735 4422140 5748782 6059170 6389470 8306311 11497564 12118340 12778940 14371955 16612622 28743910 33225244 41531555 57487820 81146269 83063110 162292538 166126220 324585076 405731345 811462690 1054901497 1622925380 2109802994 4219605988 5274507485 10549014970 21098029940
• Sum of all divisors σ(n): 48248438784
• Sum of proper divisors (its aliquot sum) s(n): 27150408844
• 21098029940 is an abundant number, because the sum of its proper divisors (27150408844) is greater than itself. Its abundance is 6052378904

Bases of 21098029940

• Binary: 10011101001100010100110001101110100₂
• Hexadecimal: 0x4E98A6374
• Base-36: 9OX8038

Squares and roots of 21098029940

• 21098029940 squared (21098029940²) is 445126867349136403600
• 21098029940 cubed (21098029940³) is 9391299974430488276296723784000
• The square root of 21098029940 is 145251.6090788671
• The cube root of 21098029940 is 2763.2104846319

Scales and comparisons

• 21,098,029,940 seconds is equal to 670 years, 44 weeks, 2 days, 3 hours, 52 minutes, 20 seconds.
• To count from 1 to 21,098,029,940 would take you about one thousand, three hundred forty-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 21098029940 cubic inches would be around 230.3 feet tall.

Recreational maths with 21098029940

• 21098029940 backwards is 04992089012
• The number of decimal digits it has is: 11
• The sum of 21098029940's digits is 44
• More coming soon!