19918016208

Names of 19918016208

• Cardinal: 19918016208 can be written as Nineteen billion, nine hundred eighteen million, sixteen thousand, two hundred eight.

Scientific notation

• Scientific notation: 1.9918016208 × 10¹⁰

Factors of 19918016208

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 10343

Divisors of 19918016208

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 67 72 108 134 144 201 216 268 402 432 536 603 804 1072 1206 1608 1809 2412 3216 3618 4489 4824 7236 8978 9648 10271 13467 14472 17956 20542 26934 28944 30813 35912 40401 41084 53868 61626 71824 80802 82168 92439 107736 121203 123252 161604 164336 184878 215472 242406 246504 277317 323208 369756 484812 493008 554634 646416 688157 739512 969624 1109268 1376314 1479024 1939248 2064471 2218536 2752628 4128942 4437072 5505256 6193413 8257884 11010512 12386826 16515768 18580239 24773652 33031536 37160478 46106519 49547304 74320956 92213038 99094608 138319557 148641912 184426076 276639114 297283824 368852152 414958671 553278228 737704304 829917342 1106556456 1244876013 1659834684 2213112912 2489752026 3319669368 4979504052 6639338736 9959008104 19918016208
• Sum of all divisors σ(n): 58043784960
• Sum of proper divisors (its aliquot sum) s(n): 38125768752
• 19918016208 is an abundant number, because the sum of its proper divisors (38125768752) is greater than itself. Its abundance is 18207752544

Bases of 19918016208

• Binary: 10010100011001101001100111011010000₂
• Hexadecimal: 0x4A334CED0
• Base-36: 95EO7O0

Squares and roots of 19918016208

• 19918016208 squared (19918016208²) is 396727369662150699264
• 19918016208 cubed (19918016208³) is 7902022179087925112078885670912
• The square root of 19918016208 is 141131.2021064089
• The cube root of 19918016208 is 2710.7035662757

Scales and comparisons

• 19,918,016,208 seconds is equal to 633 years, 17 weeks, 1 day, 14 hours, 16 minutes, 48 seconds.
• To count from 1 to 19,918,016,208 would take you about one thousand, two hundred sixty-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 19918016208 cubic inches would be around 225.9 feet tall.

Recreational maths with 19918016208

• 19918016208 backwards is 80261081991
• The number of decimal digits it has is: 11
• The sum of 19918016208's digits is 45
• More coming soon!