2749010985

Names of 2749010985

• Cardinal: 2749010985 can be written as Two billion, seven hundred forty-nine million, ten thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 2.749010985 × 10⁹

Factors of 2749010985

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5233

Divisors of 2749010985

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 5 7 9 15 21 35 45 49 63 105 147 245 251 315 441 735 753 1255 1757 2205 2259 3765 4967 5271 8785 11295 12299 14901 15813 24835 26355 34769 36897 44703 61495 74505 79065 104307 110691 173845 184485 223515 243383 312921 521535 553455 730149 1216915 1246717 1564605 2190447 3650745 3740151 6233585 8727019 10952235 11220453 18700755 26181057 43635095 56102265 61089133 78543171 130905285 183267399 305445665 392715855 549802197 916336995 2749010985
• Sum of all divisors σ(n): 5566107456
• Sum of proper divisors (its aliquot sum) s(n): 2817096471
• 2749010985 is an abundant number, because the sum of its proper divisors (2817096471) is greater than itself. Its abundance is 68085486

Bases of 2749010985

• Binary: 10100011110110101001010000101001₂
• Hexadecimal: 0xA3DA9429
• Base-36: 19GOUG9

Squares and roots of 2749010985

• 2749010985 squared (2749010985²) is 7557061395650670225
• 2749010985 cubed (2749010985³) is 20774444790963123671137421625
• The square root of 2749010985 is 52431.0116724825
• The cube root of 2749010985 is 1400.8516901025

Scales and comparisons

• 2,749,010,985 seconds is equal to 87 years, 21 weeks, 2 days, 6 hours, 9 minutes, 45 seconds.
• To count from 1 to 2,749,010,985 would take you about one hundred seventy-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 2749010985 cubic inches would be around 116.7 feet tall.

Recreational maths with 2749010985

• 2749010985 backwards is 5890109472
• 2749010985 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 2749010985's digits is 45
• More coming soon!