868064890

Names of 868064890

• Cardinal: 868064890 can be written as Eight hundred sixty-eight million, sixty-four thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 8.6806489 × 10⁸

Factors of 868064890

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 25

Divisors of 868064890

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 5 7 10 11 14 22 35 49 55 70 77 98 110 121 154 242 245 385 490 539 605 770 847 1078 1210 1331 1694 2662 2695 4235 5390 5929 6655 8470 9317 11858 13310 14641 18634 29282 29645 46585 59290 65219 73205 93170 102487 130438 146410 161051 204974 322102 326095 512435 652190 717409 805255 1024870 1127357 1434818 1610510 1771561 2254714 3543122 3587045 5636785 7174090 7891499 8857805 11273570 12400927 15782998 17715610 24801854 39457495 62004635 78914990 86806489 124009270 173612978 434032445 868064890
• Sum of all divisors σ(n): 1999383642
• Sum of proper divisors (its aliquot sum) s(n): 1131318752
• 868064890 is an abundant number, because the sum of its proper divisors (1131318752) is greater than itself. Its abundance is 263253862

Bases of 868064890

• Binary: 110011101111011001111001111010₂
• Hexadecimal: 0x33BD9E7A
• Base-36: ECTN5M

Squares and roots of 868064890

• 868064890 squared (868064890²) is 753536653250712100
• 868064890 cubed (868064890³) is 654118712015047541508169000
• The square root of 868064890 is 29462.9409597885
• The cube root of 868064890 is 953.9319547357
• Being both a perfect square and a perfect cube, 868064890 is also a perfect sixth number.

Scales and comparisons

• 868,064,890 seconds is equal to 27 years, 31 weeks, 2 days, 1 hour, 8 minutes, 10 seconds.
• To count from 1 to 868,064,890 would take you about forty-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 868064890 cubic inches would be around 79.5 feet tall.

Recreational maths with 868064890

• 868064890 backwards is 098460868
• 868064890 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 868064890's digits is 49
• More coming soon!