80021605768

Names of 80021605768

• Cardinal: 80021605768 can be written as Eighty billion, twenty-one million, six hundred five thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 8.0021605768 × 10¹⁰

Factors of 80021605768

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 141082

Divisors of 80021605768

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 13 26 43 52 86 104 127 172 254 344 508 559 1016 1118 1651 2236 3302 4472 5461 6604 10922 13208 21844 43688 70993 140897 141986 281794 283972 563588 567944 1127176 1831661 3663322 6058571 7326644 12117142 14653288 17893919 24234284 35787838 48468568 71575676 78761423 143151352 157522846 232620947 315045692 465241894 630091384 769438517 930483788 1538877034 1860967576 3077754068 6155508136 10002700721 20005401442 40010802884 80021605768
• Sum of all divisors σ(n): 166642882560
• Sum of proper divisors (its aliquot sum) s(n): 86621276792
• 80021605768 is an abundant number, because the sum of its proper divisors (86621276792) is greater than itself. Its abundance is 6599671024

Bases of 80021605768

• Binary: 1001010100001101010001100110110001000₂
• Hexadecimal: 0x12A1A8CD88
• Base-36: 10RESQ6G

Squares and roots of 80021605768

• 80021605768 squared (80021605768²) is 6403457389689210869824
• 80021605768 cubed (80021605768³) is 512414942789896380268076495544832
• The square root of 80021605768 is 282880.9038588501
• The cube root of 80021605768 is 4309.2572469493

Scales and comparisons

• 80,021,605,768 seconds is equal to 2,544 years, 22 weeks, 5 days, 23 hours, 49 minutes, 28 seconds.
• To count from 1 to 80,021,605,768 would take you about five thousand and eighty-eight 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 80021605768 cubic inches would be around 359.1 feet tall.

Recreational maths with 80021605768

• 80021605768 backwards is 86750612008
• 80021605768 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 80021605768's digits is 43
• More coming soon!