18934168743

Names of 18934168743

• Cardinal: 18934168743 can be written as Eighteen billion, nine hundred thirty-four million, one hundred sixty-eight thousand, seven hundred forty-three.

Scientific notation

• Scientific notation: 1.8934168743 × 10¹⁰

Factors of 18934168743

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 203

Divisors of 18934168743

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 9 19 21 27 49 57 63 71 103 133 147 171 189 213 309 399 441 497 513 639 721 927 931 1197 1323 1349 1491 1917 1957 2163 2781 2793 3479 3591 4047 4473 5047 5871 6489 7313 8379 9443 10437 10609 12141 13419 13699 15141 17613 19467 21939 25137 28329 31311 31827 36423 41097 45423 51191 52839 65817 66101 74263 84987 93933 95481 95893 123291 136269 138947 153573 197451 198303 201571 222789 254961 286443 287679 358337 369873 416841 460719 519841 594909 604713 668367 753239 863037 972629 1075011 1250523 1382157 1410997 1559523 1784727 1814139 2005101 2259717 2589111 2917887 3225033 3751569 4232991 4678569 5272673 5442417 6779151 6808403 8753661 9675099 9876979 12698973 14035707 14311541 15818019 20337453 20425209 26260983 29630937 36908711 38096919 42934623 47454057 61275627 88892811 100180787 110726133 128803869 142362171 183826881 266678433 300542361 332178399 386411607 701265509 901627083 996535197 2103796527 2704881249 6311389581 18934168743
• Sum of all divisors σ(n): 35172921600
• Sum of proper divisors (its aliquot sum) s(n): 16238752857
• 18934168743 is a deficient number, because the sum of its proper divisors (16238752857) is less than itself. Its deficiency is 2695415886

Bases of 18934168743

• Binary: 10001101000100100000111110010100111₂
• Hexadecimal: 0x468907CA7
• Base-36: 8P4WY3R

Squares and roots of 18934168743

• 18934168743 squared (18934168743²) is 358502745988398200049
• 18934168743 cubed (18934168743³) is 6787951487373197840005236868407
• The square root of 18934168743 is 137601.4852499783
• The cube root of 18934168743 is 2665.3162538659

Scales and comparisons

• 18,934,168,743 seconds is equal to 602 years, 2 weeks, 3 days, 11 hours, 19 minutes, 3 seconds.
• To count from 1 to 18,934,168,743 would take you about one thousand, two hundred 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 18934168743 cubic inches would be around 222.1 feet tall.

Recreational maths with 18934168743

• 18934168743 backwards is 34786143981
• The number of decimal digits it has is: 11
• The sum of 18934168743's digits is 54
• More coming soon!