3994403920

Names of 3994403920

• Cardinal: 3994403920 can be written as Three billion, nine hundred ninety-four million, four hundred three thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.99440392 × 10⁹

Factors of 3994403920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 342

Divisors of 3994403920

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 149 173 208 260 298 346 520 596 692 745 865 1040 1192 1384 1490 1730 1937 2249 2384 2768 2980 3460 3874 4498 5960 6920 7748 8996 9685 11245 11920 13840 15496 17992 19370 22201 22490 25777 30992 35984 38740 44402 44980 51554 77480 88804 89960 103108 111005 128885 154960 177608 179920 206216 222010 257770 288613 335101 355216 412432 444020 515540 577226 670202 888040 1031080 1154452 1340404 1443065 1675505 1776080 2062160 2308904 2680808 2886130 3351010 3840773 4617808 5361616 5772260 6702020 7681546 11544520 13404040 15363092 19203865 23089040 26808080 30726184 38407730 49930049 61452368 76815460 99860098 153630920 199720196 249650245 307261840 399440392 499300490 798880784 998600980 1997201960 3994403920
• Sum of all divisors σ(n): 10127148696
• Sum of proper divisors (its aliquot sum) s(n): 6132744776
• 3994403920 is an abundant number, because the sum of its proper divisors (6132744776) is greater than itself. Its abundance is 2138340856

Bases of 3994403920

• Binary: 11101110000101011100010001010000₂
• Hexadecimal: 0xEE15C450
• Base-36: 1U25XSG

Squares and roots of 3994403920

• 3994403920 squared (3994403920²) is 15955262676111366400
• 3994403920 cubed (3994403920³) is 63731763778088932304716288000
• The square root of 3994403920 is 63201.2968221379
• The cube root of 3994403920 is 1586.6604378761

Scales and comparisons

• 3,994,403,920 seconds is equal to 127 years, 3 days, 12 hours, 38 minutes, 40 seconds.
• To count from 1 to 3,994,403,920 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 3994403920 cubic inches would be around 132.2 feet tall.

Recreational maths with 3994403920

• 3994403920 backwards is 0293044993
• The number of decimal digits it has is: 10
• The sum of 3994403920's digits is 43
• More coming soon!