21401396475

Names of 21401396475

• Cardinal: 21401396475 can be written as Twenty-one billion, four hundred one million, three hundred ninety-six thousand, four hundred seventy-five.

Scientific notation

• Scientific notation: 2.1401396475 × 10¹⁰

Factors of 21401396475

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 266

Divisors of 21401396475

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 5 15 17 25 51 75 85 241 255 289 425 723 867 1205 1275 1445 3615 4097 4335 4913 6025 7225 12291 14739 18075 20485 21675 24565 58081 61455 69649 73695 102425 122825 174243 208947 290405 307275 348245 368475 871215 987377 1044735 1184033 1452025 1741225 2962131 3552099 4356075 4936885 5223675 5920165 14810655 16785409 17760495 24684425 29600825 50356227 74053275 83927045 88802475 251781135 285351953 419635225 856055859 1258905675 1426759765 4280279295 7133798825 21401396475
• Sum of all divisors σ(n): 37751311440
• Sum of proper divisors (its aliquot sum) s(n): 16349914965
• 21401396475 is a deficient number, because the sum of its proper divisors (16349914965) is less than itself. Its deficiency is 5051481510

Bases of 21401396475

• Binary: 10011111011100111110110010011111011₂
• Hexadecimal: 0x4FB9F64FB
• Base-36: 9TXU77F

Squares and roots of 21401396475

• 21401396475 squared (21401396475²) is 458019771080142425625
• 21401396475 cubed (21401396475³) is 9802262714274867050268824671875
• The square root of 21401396475 is 146292.1613587003
• The cube root of 21401396475 is 2776.3914878389

Scales and comparisons

• 21,401,396,475 seconds is equal to 680 years, 25 weeks, 6 days, 8 hours, 21 minutes, 15 seconds.
• To count from 1 to 21,401,396,475 would take you about one thousand, three hundred sixty 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 21401396475 cubic inches would be around 231.4 feet tall.

Recreational maths with 21401396475

• 21401396475 backwards is 57469310412
• The number of decimal digits it has is: 11
• The sum of 21401396475's digits is 42
• More coming soon!