2849940

Names of 2849940

• Cardinal: 2849940 can be written as Two million, eight hundred forty-nine thousand, nine hundred forty.

Scientific notation

• Scientific notation: 2.84994 × 10⁶

Factors of 2849940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 304

Divisors of 2849940

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 71 90 142 180 213 223 284 355 426 446 639 669 710 852 892 1065 1115 1278 1338 1420 2007 2130 2230 2556 2676 3195 3345 4014 4260 4460 6390 6690 8028 10035 12780 13380 15833 20070 31666 40140 47499 63332 79165 94998 142497 158330 189996 237495 284994 316660 474990 569988 712485 949980 1424970 2849940
• Sum of all divisors σ(n): 8805888
• Sum of proper divisors (its aliquot sum) s(n): 5955948
• 2849940 is an abundant number, because the sum of its proper divisors (5955948) is greater than itself. Its abundance is 3106008

Bases of 2849940

• Binary: 1010110111110010010100₂
• Hexadecimal: 0x2B7C94
• Base-36: 1P310

Squares and roots of 2849940

• 2849940 squared (2849940²) is 8122158003600
• 2849940 cubed (2849940³) is 23147662980779784000
• The square root of 2849940 is 1688.1765310535
• The cube root of 2849940 is 141.7789989475

Scales and comparisons

• 2,849,940 seconds is equal to 4 weeks, 4 days, 23 hours, 39 minutes.
• To count from 1 to 2,849,940 would take you about seven weeks!

  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 2849940 cubic inches would be around 11.8 feet tall.

Recreational maths with 2849940

• 2849940 backwards is 0499482
• 2849940 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 2849940's digits is 36
• More coming soon!