138915786996

Names of 138915786996

• Cardinal: 138915786996 can be written as One hundred thirty-eight billion, nine hundred fifteen million, seven hundred eighty-six thousand, nine hundred ninety-six.

Scientific notation

• Scientific notation: 1.38915786996 × 10¹¹

Factors of 138915786996

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 788

Divisors of 138915786996

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 84 108 126 162 163 189 252 324 326 378 489 567 613 652 756 978 1134 1141 1226 1467 1839 1956 2268 2282 2452 2934 3423 3678 4291 4401 4564 5517 5868 6846 7356 8582 8802 10269 11034 12873 13203 13692 16551 17164 17604 20538 22068 25746 26406 30807 33102 38619 41076 49653 51492 52812 61614 66204 77238 92421 99306 99919 115857 123228 154476 184842 198612 199838 231714 299757 347571 369684 375769 399676 463428 599514 695142 699433 751538 899271 1127307 1199028 1390284 1398866 1503076 1798542 2098299 2254614 2630383 2697813 2797732 3381921 3597084 4196598 4509228 5260766 5395626 6294897 6763842 7891149 8093439 8393196 10145763 10521532 10791252 12589794 13527684 15782298 16186878 18884691 20291526 23673447 25179588 30437289 31564596 32373756 37769382 40583052 47346894 56654073 60874578 61250347 71020341 75538764 94693788 113308146 121749156 122500694 142040682 183751041 213061023 226616292 245001388 284081364 367502082 426122046 428752429 551253123 735004164 852244092 857504858 1102506246 1286257287 1653759369 1715009716 2205012492 2572514574 3307518738 3858771861 4961278107 5145029148 6615037476 7717543722 9922556214 11576315583 15435087444 19845112428 23152631166 34728946749 46305262332 69457893498 138915786996
• Sum of all divisors σ(n): 418260878112
• Sum of proper divisors (its aliquot sum) s(n): 279345091116
• 138915786996 is an abundant number, because the sum of its proper divisors (279345091116) is greater than itself. Its abundance is 140429304120

Bases of 138915786996

• Binary: 10000001011000000001101011000011110100₂
• Hexadecimal: 0x205806B0F4
• Base-36: 1RTEVF90

Squares and roots of 138915786996

• 138915786996 squared (138915786996²) is 19297595876718042704016
• 138915786996 cubed (138915786996³) is 2680740718345051495821118529775936
• The square root of 138915786996 is 372714.0821004757
• The cube root of 138915786996 is 5179.0551363679

Scales and comparisons

• 138,915,786,996 seconds is equal to 4,417 years, 4 weeks, 5 days, 14 hours, 36 minutes, 36 seconds.
• To count from 1 to 138,915,786,996 would take you about eight thousand, eight hundred thirty-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 138915786996 cubic inches would be around 431.6 feet tall.

Recreational maths with 138915786996

• 138915786996 backwards is 699687519831
• The number of decimal digits it has is: 12
• The sum of 138915786996's digits is 72
• More coming soon!