3999216

Names of 3999216

• Cardinal: 3999216 can be written as Three million, nine hundred ninety-nine thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 3.999216 × 10⁶

Factors of 3999216

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 64

Divisors of 3999216

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 17 24 26 29 34 39 48 51 52 58 68 78 87 102 104 116 136 156 169 174 204 208 221 232 272 312 338 348 377 408 442 464 493 507 624 663 676 696 754 816 884 986 1014 1131 1326 1352 1392 1479 1508 1768 1972 2028 2262 2652 2704 2873 2958 3016 3536 3944 4056 4524 4901 5304 5746 5916 6032 6409 7888 8112 8619 9048 9802 10608 11492 11832 12818 14703 17238 18096 19227 19604 22984 23664 25636 29406 34476 38454 39208 45968 51272 58812 68952 76908 78416 83317 102544 117624 137904 153816 166634 235248 249951 307632 333268 499902 666536 999804 1333072 1999608 3999216
• Sum of all divisors σ(n): 12253680
• Sum of proper divisors (its aliquot sum) s(n): 8254464
• 3999216 is an abundant number, because the sum of its proper divisors (8254464) is greater than itself. Its abundance is 4255248

Bases of 3999216

• Binary: 1111010000010111110000₂
• Hexadecimal: 0x3D05F0
• Base-36: 2DPTC

Squares and roots of 3999216

• 3999216 squared (3999216²) is 15993728614656
• 3999216 cubed (3999216³) is 63962375375390109696
• The square root of 3999216 is 1999.8039903951
• The cube root of 3999216 is 158.7297334989

Scales and comparisons

• 3,999,216 seconds is equal to 6 weeks, 4 days, 6 hours, 53 minutes, 36 seconds.
• To count from 1 to 3,999,216 would take you about nine 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 3999216 cubic inches would be around 13.2 feet tall.

Recreational maths with 3999216

• 3999216 backwards is 6129993
• 3999216 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 3999216's digits is 39
• More coming soon!