21273086640

Names of 21273086640

• Cardinal: 21273086640 can be written as Twenty-one billion, two hundred seventy-three million, eighty-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.127308664 × 10¹⁰

Factors of 21273086640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 6818320

Divisors of 21273086640

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 195 208 240 260 312 390 520 624 780 1040 1560 3120 6818297 13636594 20454891 27273188 34091485 40909782 54546376 68182970 81819564 88637861 102274455 109092752 136365940 163639128 177275722 204548910 265913583 272731880 327278256 354551444 409097820 443189305 531827166 545463760 709102888 818195640 886378610 1063654332 1329567915 1418205776 1636391280 1772757220 2127308664 2659135830 3545514440 4254617328 5318271660 7091028880 10636543320 21273086640
• Sum of all divisors σ(n): 71019391968
• Sum of proper divisors (its aliquot sum) s(n): 49746305328
• 21273086640 is an abundant number, because the sum of its proper divisors (49746305328) is greater than itself. Its abundance is 28473218688

Bases of 21273086640

• Binary: 10011110011111110011000101010110000₂
• Hexadecimal: 0x4F3F98AB0
• Base-36: 9RTG2PC

Squares and roots of 21273086640

• 21273086640 squared (21273086640²) is 452544215192946489600
• 21273086640 cubed (21273086640³) is 9627012298230354990144658944000
• The square root of 21273086640 is 145852.9623970661
• The cube root of 21273086640 is 2770.8318406013

Scales and comparisons

• 21,273,086,640 seconds is equal to 676 years, 21 weeks, 5 days, 6 hours, 44 minutes.
• To count from 1 to 21,273,086,640 would take you about one thousand, three hundred fifty-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 21273086640 cubic inches would be around 230.9 feet tall.

Recreational maths with 21273086640

• 21273086640 backwards is 04668037212
• 21273086640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21273086640's digits is 39
• More coming soon!