18468945440

Names of 18468945440

• Cardinal: 18468945440 can be written as Eighteen billion, four hundred sixty-eight million, nine hundred forty-five thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.846894544 × 10¹⁰

Factors of 18468945440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 552338

Divisors of 18468945440

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 11 16 19 20 22 32 38 40 44 55 76 80 88 95 110 152 160 176 190 209 220 304 352 380 418 440 608 760 836 880 1045 1520 1672 1760 2090 3040 3344 4180 6688 8360 16720 33440 552301 1104602 2209204 2761505 4418408 5523010 6075311 8836816 10493719 11046020 12150622 17673632 20987438 22092040 24301244 30376555 41974876 44184080 48602488 52468595 60753110 83949752 88368160 97204976 104937190 115430909 121506220 167899504 194409952 209874380 230861818 243012440 335799008 419748760 461723636 486024880 577154545 839497520 923447272 972049760 1154309090 1678995040 1846894544 2308618180 3693789088 4617236360 9234472720 18468945440
• Sum of all divisors σ(n): 50104837440
• Sum of proper divisors (its aliquot sum) s(n): 31635892000
• 18468945440 is an abundant number, because the sum of its proper divisors (31635892000) is greater than itself. Its abundance is 13166946560

Bases of 18468945440

• Binary: 10001001100110101011011111000100000₂
• Hexadecimal: 0x44CD5BE20
• Base-36: 8HFXLI8

Squares and roots of 18468945440

• 18468945440 squared (18468945440²) is 341101945665696793600
• 18468945440 cubed (18468945440³) is 6299793223977598560581341184000
• The square root of 18468945440 is 135900.4983066655
• The cube root of 18468945440 is 2643.3055395467

Scales and comparisons

• 18,468,945,440 seconds is equal to 587 years, 13 weeks, 1 day, 22 hours, 37 minutes, 20 seconds.
• To count from 1 to 18,468,945,440 would take you about one thousand, one hundred seventy-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 18468945440 cubic inches would be around 220.3 feet tall.

Recreational maths with 18468945440

• 18468945440 backwards is 04454986481
• The number of decimal digits it has is: 11
• The sum of 18468945440's digits is 53
• More coming soon!