21404767590

Names of 21404767590

• Cardinal: 21404767590 can be written as Twenty-one billion, four hundred four million, seven hundred sixty-seven thousand, five hundred ninety.

Scientific notation

• Scientific notation: 2.140476759 × 10¹⁰

Factors of 21404767590

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 86394

Divisors of 21404767590

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 307 405 614 810 921 1535 1842 2763 3070 4605 5526 8289 9210 13815 16578 24867 27630 41445 49734 82890 86077 124335 172154 248670 258231 430385 516462 774693 860770 1291155 1549386 2324079 2582310 3873465 4648158 6972237 7746930 11620395 13944474 23240790 26425639 34861185 52851278 69722370 79276917 132128195 158553834 237830751 264256390 396384585 475661502 713492253 792769170 1189153755 1426984506 2140476759 2378307510 3567461265 4280953518 7134922530 10702383795 21404767590
• Sum of all divisors σ(n): 57743188272
• Sum of proper divisors (its aliquot sum) s(n): 36338420682
• 21404767590 is an abundant number, because the sum of its proper divisors (36338420682) is greater than itself. Its abundance is 14933653092

Bases of 21404767590

• Binary: 10011111011110100101101010101100110₂
• Hexadecimal: 0x4FBD2D566
• Base-36: 9TZUGDI

Squares and roots of 21404767590

• 21404767590 squared (21404767590²) is 458164075581914408100
• 21404767590 cubed (21404767590³) is 9806895555918071912652913479000
• The square root of 21404767590 is 146303.6827629435
• The cube root of 21404767590 is 2776.5372578221

Scales and comparisons

• 21,404,767,590 seconds is equal to 680 years, 31 weeks, 3 days, 8 hours, 46 minutes, 30 seconds.
• To count from 1 to 21,404,767,590 would take you about one thousand, three hundred sixty-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 21404767590 cubic inches would be around 231.4 feet tall.

Recreational maths with 21404767590

• 21404767590 backwards is 09576740412
• 21404767590 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21404767590's digits is 45
• More coming soon!