21239117401968

Names of 21239117401968

• Cardinal: 21239117401968 can be written as Twenty-one trillion, two hundred thirty-nine billion, one hundred seventeen million, four hundred one thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1239117401968 × 10¹³

Factors of 21239117401968

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 772397

Divisors of 21239117401968

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 345533 426859 691066 853718 1036599 1280577 1382132 1707436 2073198 2561154 2764264 3109797 3414872 3841731 4146396 5122308 5528528 6219594 6829744 7683462 8292792 10244616 12439188 15366924 16585584 20489232 24878376 30733848 49756752 61467696 147493870847 294987741694 442481612541 589975483388 884963225082 1179950966776 1327444837623 1769926450164 2359901933552 2654889675246 3539852900328 5309779350492 7079705800656 10619558700984 21239117401968
• Sum of all divisors σ(n): 59440341225720
• Sum of proper divisors (its aliquot sum) s(n): 38201223823752
• 21239117401968 is an abundant number, because the sum of its proper divisors (38201223823752) is greater than itself. Its abundance is 16962106421784

Bases of 21239117401968

• Binary: 100110101000100011110000011000100111101110000₂
• Hexadecimal: 0x13511E0C4F70
• Base-36: 7J1464FW0

Squares and roots of 21239117401968

• 21239117401968 squared (21239117401968²) is 451100108014579926090273024
• 21239117401968 cubed (21239117401968³) is 9580968154162108974487325049334674911232
• The square root of 21239117401968 is 4608591.6939959001
• The cube root of 21239117401968 is 27693.5621725393

Scales and comparisons

• 21,239,117,401,968 seconds is equal to 675,338 years, 12 weeks, 2 days, 1 hour, 52 minutes, 48 seconds.
• To count from 1 to 21,239,117,401,968 would take you about one million, six hundred eighty-eight thousand, three hundred forty-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 21239117401968 cubic inches would be around 2307.8 feet tall.

Recreational maths with 21239117401968

• 21239117401968 backwards is 86910471193212
• The number of decimal digits it has is: 14
• The sum of 21239117401968's digits is 54
• More coming soon!