13405518378

Names of 13405518378

• Cardinal: 13405518378 can be written as Thirteen billion, four hundred five million, five hundred eighteen thousand, three hundred seventy-eight.

Scientific notation

• Scientific notation: 1.3405518378 × 10¹⁰

Factors of 13405518378

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 434

Divisors of 13405518378

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 42 63 71 89 113 126 142 149 178 213 226 267 298 339 426 447 497 534 623 639 678 791 801 894 994 1017 1043 1246 1278 1341 1491 1582 1602 1869 2034 2086 2373 2682 2982 3129 3738 4473 4746 5607 6258 6319 7119 8023 8946 9387 10057 10579 11214 12638 13261 14238 16046 16837 18774 18957 20114 21158 24069 26522 30171 31737 33674 37914 39783 44233 48138 50511 56161 56871 60342 63474 70399 72207 74053 79566 88466 90513 92827 95211 101022 112322 113742 117859 119349 132699 140798 144414 148106 151533 168483 181026 185654 190422 211197 222159 235718 238698 265398 278481 303066 336966 353577 398097 422394 444318 505449 556962 633591 666477 707154 714047 796194 835443 941531 1010898 1060731 1195427 1267182 1332954 1428094 1498493 1670886 1883062 2121462 2142141 2390854 2824593 2996986 3586281 4284282 4495479 4998329 5649186 6426423 6590717 7172562 8367989 8473779 8990958 9996658 10489451 10758843 12852846 13181434 13486437 14994987 16735978 16947558 19772151 20978902 21517686 25103967 26972874 29989974 31468353 39544302 44984961 50207934 59316453 62936706 75311901 89969922 94405059 106393003 118632906 150623802 188810118 212786006 319179009 638358018 744751021 957537027 1489502042 1915074054 2234253063 4468506126 6702759189 13405518378
• Sum of all divisors σ(n): 34572096000
• Sum of proper divisors (its aliquot sum) s(n): 21166577622
• 13405518378 is an abundant number, because the sum of its proper divisors (21166577622) is greater than itself. Its abundance is 7761059244

Bases of 13405518378

• Binary: 1100011111000001111111101000101010₂
• Hexadecimal: 0x31F07FA2A
• Base-36: 65PAS6I

Squares and roots of 13405518378

• 13405518378 squared (13405518378²) is 179707922982895750884
• 13405518378 cubed (13405518378³) is 2409077864219417568133571746152
• The square root of 13405518378 is 115782.2023369741
• The cube root of 13405518378 is 2375.5337454063

Scales and comparisons

• 13,405,518,378 seconds is equal to 426 years, 13 weeks, 1 day, 11 hours, 6 minutes, 18 seconds.
• To count from 1 to 13,405,518,378 would take you about eight hundred fifty-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 13405518378 cubic inches would be around 198 feet tall.

Recreational maths with 13405518378

• 13405518378 backwards is 87381550431
• The number of decimal digits it has is: 11
• The sum of 13405518378's digits is 45
• More coming soon!