138690920460

Names of 138690920460

• Cardinal: 138690920460 can be written as One hundred thirty-eight billion, six hundred ninety million, nine hundred twenty thousand, four hundred sixty.

Scientific notation

• Scientific notation: 1.3869092046 × 10¹¹

Factors of 138690920460

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 61286

Divisors of 138690920460

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 23 30 31 46 53 60 62 69 92 93 106 115 124 138 155 159 186 212 230 265 276 310 318 345 372 460 465 530 620 636 690 713 795 930 1060 1219 1380 1426 1590 1643 1860 2139 2438 2852 3180 3286 3565 3657 4278 4876 4929 6095 6572 7130 7314 8215 8556 9858 10695 12190 14260 14628 16430 18285 19716 21390 24380 24645 32860 36570 37789 42780 49290 61169 73140 75578 98580 113367 122338 151156 183507 188945 226734 244676 305845 367014 377890 453468 566835 611690 734028 755780 917535 1133670 1223380 1406887 1835070 1896239 2267340 2813774 3241957 3670140 3792478 4220661 5627548 5688717 6483914 7034435 7584956 8441322 9481195 9725871 11377434 12967828 14068870 16209785 16882644 18962390 19451742 21103305 22754868 28137740 28443585 32419570 37924780 38903484 42206610 43613497 48629355 56887170 64839140 74565011 84413220 87226994 97258710 100500667 113774340 130840491 149130022 174453988 194517420 201001334 218067485 223695033 261680982 298260044 301502001 372825055 402002668 436134970 447390066 502503335 523361964 603004002 654202455 745650110 872269940 894780132 1005006670 1118475165 1206008004 1308404910 1491300220 1507510005 2010013340 2236950330 2311515341 2616809820 3015020010 4473900660 4623030682 6030040020 6934546023 9246061364 11557576705 13869092046 23115153410 27738184092 34672730115 46230306820 69345460230 138690920460
• Sum of all divisors σ(n): 426189496320
• Sum of proper divisors (its aliquot sum) s(n): 287498575860
• 138690920460 is an abundant number, because the sum of its proper divisors (287498575860) is greater than itself. Its abundance is 148807655400

Bases of 138690920460

• Binary: 10000001001010100111111000000000001100₂
• Hexadecimal: 0x204A9F800C
• Base-36: 1RPOZR4C

Squares and roots of 138690920460

• 138690920460 squared (138690920460²) is 19235171418042046611600
• 138690920460 cubed (138690920460³) is 2667743629174134895545028113336000
• The square root of 138690920460 is 372412.2990181715
• The cube root of 138690920460 is 5176.2591375201

Scales and comparisons

• 138,690,920,460 seconds is equal to 4,409 years, 48 weeks, 6 days, 23 hours, 41 minutes.
• To count from 1 to 138,690,920,460 would take you about eight thousand, eight hundred nineteen 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 138690920460 cubic inches would be around 431.4 feet tall.

Recreational maths with 138690920460

• 138690920460 backwards is 064029096831
• The number of decimal digits it has is: 12
• The sum of 138690920460's digits is 48
• More coming soon!