18183287980

Names of 18183287980

• Cardinal: 18183287980 can be written as Eighteen billion, one hundred eighty-three million, two hundred eighty-seven thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 1.818328798 × 10¹⁰

Factors of 18183287980

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 489092

Divisors of 18183287980

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 169 220 260 286 338 572 676 715 845 1430 1690 1859 2860 3380 3718 7436 9295 18590 37180 489061 978122 1956244 2445305 4890610 5379671 6357793 9781220 10759342 12715586 21518684 25431172 26898355 31788965 53796710 63577930 69935723 82651309 107593420 127155860 139871446 165302618 279742892 330605236 349678615 413256545 699357230 826513090 909164399 1398714460 1653026180 1818328798 3636657596 4545821995 9091643990 18183287980
• Sum of all divisors σ(n): 45107166384
• Sum of proper divisors (its aliquot sum) s(n): 26923878404
• 18183287980 is an abundant number, because the sum of its proper divisors (26923878404) is greater than itself. Its abundance is 8740590424

Bases of 18183287980

• Binary: 10000111011110011101111010010101100₂
• Hexadecimal: 0x43BCEF4AC
• Base-36: 8CPUYSS

Squares and roots of 18183287980

• 18183287980 squared (18183287980²) is 330631961763612480400
• 18183287980 cubed (18183287980³) is 6011976176140114416235305592000
• The square root of 18183287980 is 134845.4225400329
• The cube root of 18183287980 is 2629.6067486833

Scales and comparisons

• 18,183,287,980 seconds is equal to 578 years, 8 weeks, 6 days, 17 hours, 19 minutes, 40 seconds.
• To count from 1 to 18,183,287,980 would take you about one thousand, one hundred fifty-six 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 18183287980 cubic inches would be around 219.1 feet tall.

Recreational maths with 18183287980

• 18183287980 backwards is 08978238181
• 18183287980 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18183287980's digits is 55
• More coming soon!