3990747900

Names of 3990747900

• Cardinal: 3990747900 can be written as Three billion, nine hundred ninety million, seven hundred forty-seven thousand, nine hundred.

Scientific notation

• Scientific notation: 3.9907479 × 10⁹

Factors of 3990747900

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 933

Divisors of 3990747900

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 83 100 150 166 249 293 300 332 415 498 547 586 830 879 996 1094 1172 1245 1465 1641 1660 1758 2075 2188 2490 2735 2930 3282 3516 4150 4395 4980 5470 5860 6225 6564 7325 8205 8300 8790 10940 12450 13675 14650 16410 17580 21975 24319 24900 27350 29300 32820 41025 43950 45401 48638 54700 72957 82050 87900 90802 97276 121595 136203 145914 160271 164100 181604 227005 243190 272406 291828 320542 364785 454010 480813 486380 544812 607975 641084 681015 729570 801355 908020 961626 1135025 1215950 1362030 1459140 1602710 1823925 1923252 2270050 2404065 2431900 2724060 3205420 3405075 3647850 4006775 4540100 4808130 6810150 7295700 8013550 9616260 12020325 13302493 13620300 16027100 24040650 26604986 39907479 48081300 53209972 66512465 79814958 133024930 159629916 199537395 266049860 332562325 399074790 665124650 798149580 997686975 1330249300 1995373950 3990747900
• Sum of all divisors σ(n): 11746998144
• Sum of proper divisors (its aliquot sum) s(n): 7756250244
• 3990747900 is an abundant number, because the sum of its proper divisors (7756250244) is greater than itself. Its abundance is 3765502344

Bases of 3990747900

• Binary: 11101101110111011111101011111100₂
• Hexadecimal: 0xEDDDFAFC
• Base-36: 1TZZKSC

Squares and roots of 3990747900

• 3990747900 squared (3990747900²) is 15926068801354410000
• 3990747900 cubed (3990747900³) is 63556925624260628863239000000
• The square root of 3990747900 is 63172.3665853987
• The cube root of 3990747900 is 1586.1762076777

Scales and comparisons

• 3,990,747,900 seconds is equal to 126 years, 46 weeks, 3 days, 5 hours, 5 minutes.
• To count from 1 to 3,990,747,900 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 3990747900 cubic inches would be around 132.2 feet tall.

Recreational maths with 3990747900

• 3990747900 backwards is 0097470993
• The number of decimal digits it has is: 10
• The sum of 3990747900's digits is 48
• More coming soon!