99828729

Names of 99828729

• Cardinal: 99828729 can be written as Ninety-nine million, eight hundred twenty-eight thousand, seven hundred twenty-nine.

Scientific notation

• Scientific notation: 9.9828729 × 10⁷

Factors of 99828729

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1617

Divisors of 99828729

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 11 13 21 33 39 49 63 77 91 99 117 143 147 231 273 429 441 539 637 693 819 1001 1287 1583 1617 1911 3003 4749 4851 5733 7007 9009 11081 14247 17413 20579 21021 33243 52239 61737 63063 77567 99729 121891 144053 156717 185211 226369 232701 365673 432159 679107 698103 853237 1008371 1097019 1296477 1584583 2037321 2559711 3025113 4753749 7679133 9075339 11092081 14261247 33276243 99828729
• Sum of all divisors σ(n): 197188992
• Sum of proper divisors (its aliquot sum) s(n): 97360263
• 99828729 is a deficient number, because the sum of its proper divisors (97360263) is less than itself. Its deficiency is 2468466

Bases of 99828729

• Binary: 101111100110100001111111001₂
• Hexadecimal: 0x5F343F9
• Base-36: 1NFOC9

Squares and roots of 99828729

• 99828729 squared (99828729²) is 9965775133755441
• 99828729 cubed (99828729³) is 994870665102610671864489
• The square root of 99828729 is 9991.4327801373
• The cube root of 99828729 is 463.8937420799

Scales and comparisons

• 99,828,729 seconds is equal to 3 years, 9 weeks, 10 hours, 12 minutes, 9 seconds.
• To count from 1 to 99,828,729 would take you about 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 99828729 cubic inches would be around 38.7 feet tall.

Recreational maths with 99828729

• 99828729 backwards is 92782899
• The number of decimal digits it has is: 8
• The sum of 99828729's digits is 54
• More coming soon!