3990474820

Names of 3990474820

• Cardinal: 3990474820 can be written as Three billion, nine hundred ninety million, four hundred seventy-four thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 3.99047482 × 10⁹

Factors of 3990474820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 140

Divisors of 3990474820

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 5 10 20 29 43 58 61 86 116 122 145 172 215 244 290 305 430 580 610 860 1220 1247 1769 1849 2494 2623 3538 3698 3721 4988 5246 6235 7076 7396 7442 8845 9245 10492 12470 13115 14884 17690 18490 18605 24940 26230 35380 36980 37210 52460 53621 74420 76067 107242 107909 112789 152134 160003 214484 215818 225578 268105 304268 320006 380335 431636 451156 536210 539545 563945 640012 760670 800015 1072420 1079090 1127890 1521340 1600030 2158180 2255780 3200060 3270881 4640087 6541762 6880129 9280174 13083524 13760258 16354405 18560348 23200435 27520516 32708810 34400645 46400870 65417620 68801290 92801740 137602580 199523741 399047482 798094964 997618705 1995237410 3990474820
• Sum of all divisors σ(n): 9023135940
• Sum of proper divisors (its aliquot sum) s(n): 5032661120
• 3990474820 is an abundant number, because the sum of its proper divisors (5032661120) is greater than itself. Its abundance is 1042186300

Bases of 3990474820

• Binary: 11101101110110011101000001000100₂
• Hexadecimal: 0xEDD9D044
• Base-36: 1TZTQ2S

Squares and roots of 3990474820

• 3990474820 squared (3990474820²) is 15923889289054032400
• 3990474820 cubed (3990474820³) is 63543879244437817911664168000
• The square root of 3990474820 is 63170.2051603443
• The cube root of 3990474820 is 1586.1400270845

Scales and comparisons

• 3,990,474,820 seconds is equal to 126 years, 46 weeks, 1 hour, 13 minutes, 40 seconds.
• To count from 1 to 3,990,474,820 would take you about two hundred fifty-three 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 3990474820 cubic inches would be around 132.2 feet tall.

Recreational maths with 3990474820

• 3990474820 backwards is 0284740993
• The number of decimal digits it has is: 10
• The sum of 3990474820's digits is 46
• More coming soon!