3998870668

Names of 3998870668

• Cardinal: 3998870668 can be written as Three billion, nine hundred ninety-eight million, eight hundred seventy thousand, six hundred sixty-eight.

Scientific notation

• Scientific notation: 3.998870668 × 10⁹

Factors of 3998870668

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 945

Divisors of 3998870668

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 13 26 29 31 52 58 62 113 116 124 226 377 403 452 754 757 806 899 1469 1508 1514 1612 1798 2938 3028 3277 3503 3596 5876 6554 7006 9841 11687 13108 14012 19682 21953 23374 23467 39364 42601 43906 45539 46748 46934 85202 85541 87812 91078 93868 101587 170404 171082 182156 203174 285389 305071 342164 406348 570778 610142 680543 1112033 1141556 1220284 1320631 1361086 2224066 2480689 2641262 2651771 2722172 4448132 4961378 5282524 5303542 8847059 9922756 10607084 17694118 32248957 34473023 35388236 64497914 68946046 76901359 128995828 137892092 153802718 307605436 999717667 1999435334 3998870668
• Sum of all divisors σ(n): 8129640960
• Sum of proper divisors (its aliquot sum) s(n): 4130770292
• 3998870668 is an abundant number, because the sum of its proper divisors (4130770292) is greater than itself. Its abundance is 131899624

Bases of 3998870668

• Binary: 11101110010110011110110010001100₂
• Hexadecimal: 0xEE59EC8C
• Base-36: 1U4TOCS

Squares and roots of 3998870668

• 3998870668 squared (3998870668²) is 15990966619390766224
• 3998870668 cubed (3998870668³) is 63945807367248855083198717632
• The square root of 3998870668 is 63236.6244197143
• The cube root of 3998870668 is 1587.2516460063

Scales and comparisons

• 3,998,870,668 seconds is equal to 127 years, 7 weeks, 6 days, 5 hours, 24 minutes, 28 seconds.
• To count from 1 to 3,998,870,668 would take you about two hundred fifty-four 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 3998870668 cubic inches would be around 132.3 feet tall.

Recreational maths with 3998870668

• 3998870668 backwards is 8660788993
• The number of decimal digits it has is: 10
• The sum of 3998870668's digits is 64
• More coming soon!