11988013720

Names of 11988013720

• Cardinal: 11988013720 can be written as Eleven billion, nine hundred eighty-eight million, thirteen thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.198801372 × 10¹⁰

Factors of 11988013720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1942

Divisors of 11988013720

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 20 31 40 62 124 155 181 248 310 362 620 724 905 961 1240 1448 1723 1810 1922 3446 3620 3844 4805 5611 6892 7240 7688 8615 9610 11222 13784 17230 19220 22444 28055 34460 38440 44888 53413 56110 68920 106826 112220 173941 213652 224440 267065 311863 347882 427304 534130 623726 695764 869705 1068260 1247452 1391528 1559315 1655803 1739410 2136520 2494904 3118630 3311606 3478820 6237260 6623212 6957640 8279015 9667753 12474520 13246424 16558030 19335506 33116060 38671012 48338765 66232120 77342024 96677530 193355060 299700343 386710120 599400686 1198801372 1498501715 2397602744 2997003430 5994006860 11988013720
• Sum of all divisors σ(n): 28041446160
• Sum of proper divisors (its aliquot sum) s(n): 16053432440
• 11988013720 is an abundant number, because the sum of its proper divisors (16053432440) is greater than itself. Its abundance is 4065418720

Bases of 11988013720

• Binary: 1011001010100010101001001010011000₂
• Hexadecimal: 0x2CA8A9298
• Base-36: 5I9CQL4

Squares and roots of 11988013720

• 11988013720 squared (11988013720²) is 143712472950908238400
• 11988013720 cubed (11988013720³) is 1722827097470616848400230848000
• The square root of 11988013720 is 109489.7881996307
• The cube root of 11988013720 is 2288.6659608645

Scales and comparisons

• 11,988,013,720 seconds is equal to 381 years, 9 weeks, 3 days, 3 hours, 48 minutes, 40 seconds.
• To count from 1 to 11,988,013,720 would take you about seven hundred sixty-two 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 11988013720 cubic inches would be around 190.7 feet tall.

Recreational maths with 11988013720

• 11988013720 backwards is 02731088911
• 11988013720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 11988013720's digits is 40
• More coming soon!