138960884478

Names of 138960884478

• Cardinal: 138960884478 can be written as One hundred thirty-eight billion, nine hundred sixty million, eight hundred eighty-four thousand, four hundred seventy-eight.

Scientific notation

• Scientific notation: 1.38960884478 × 10¹¹

Factors of 138960884478

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 551

Divisors of 138960884478

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 13 19 23 26 38 39 46 57 69 78 114 138 247 299 361 437 491 494 529 598 722 741 874 897 982 1058 1083 1311 1473 1482 1587 1794 2166 2622 2946 3174 4693 5681 6383 6859 6877 8303 9329 9386 10051 11293 11362 12766 13718 13754 14079 16606 17043 18658 19149 20102 20577 20631 22586 24909 27987 28158 30153 33879 34086 38298 41154 41262 49818 55974 60306 67758 89167 107939 121277 130663 146809 157757 177251 178334 190969 214567 215878 242554 259739 261326 267501 293618 315514 323817 354502 363831 381938 391989 429134 440427 473271 519478 531753 535002 572907 643701 647634 727662 779217 783978 880854 946542 1063506 1145814 1287402 1558434 2050841 2304263 2482597 2789371 3367769 3376607 3628411 4076773 4101682 4608526 4935041 4965194 5578742 6152523 6735538 6753214 6912789 7256822 7447791 8153546 8368113 9870082 10103307 10129821 10885233 12230319 12305046 13825578 14805123 14895582 16736226 20206614 20259642 21770466 24460638 29610246 43780997 47169343 52998049 64155533 77458687 87561994 93765779 94338686 105996098 128311066 131342991 141508029 154917374 158994147 187531558 192466599 232376061 262685982 281297337 283016058 317988294 384933198 464752122 562594674 1006962931 1218955127 1781549801 2013925862 2437910254 3020888793 3563099602 3656865381 5344649403 6041777586 7313730762 10689298806 23160147413 46320294826 69480442239 138960884478
• Sum of all divisors σ(n): 330931480320
• Sum of proper divisors (its aliquot sum) s(n): 191970595842
• 138960884478 is an abundant number, because the sum of its proper divisors (191970595842) is greater than itself. Its abundance is 53009711364

Bases of 138960884478

• Binary: 10000001011010101101101101001011111110₂
• Hexadecimal: 0x205AB6D2FE
• Base-36: 1RU5Q0OU

Squares and roots of 138960884478

• 138960884478 squared (138960884478²) is 19310127414908061332484
• 138960884478 cubed (138960884478³) is 2683352384958499885814247872783352
• The square root of 138960884478 is 372774.5759544231
• The cube root of 138960884478 is 5179.6155168233

Scales and comparisons

• 138,960,884,478 seconds is equal to 4,418 years, 27 weeks, 2 days, 13 hours, 41 minutes, 18 seconds.
• To count from 1 to 138,960,884,478 would take you about eight thousand, eight hundred thirty-seven 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 138960884478 cubic inches would be around 431.6 feet tall.

Recreational maths with 138960884478

• 138960884478 backwards is 874488069831
• The number of decimal digits it has is: 12
• The sum of 138960884478's digits is 66
• More coming soon!