138669051780

Names of 138669051780

• Cardinal: 138669051780 can be written as One hundred thirty-eight billion, six hundred sixty-nine million, fifty-one thousand, seven hundred eighty.

Scientific notation

• Scientific notation: 1.3866905178 × 10¹¹

Factors of 138669051780

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 12754

Divisors of 138669051780

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 67 70 84 90 105 126 131 134 140 180 201 210 252 262 268 315 335 393 402 420 469 524 603 630 655 670 786 804 917 938 1005 1179 1206 1260 1310 1340 1407 1572 1834 1876 1965 2010 2345 2358 2412 2620 2751 2814 3015 3668 3930 4020 4221 4585 4690 4716 5502 5628 5895 6030 7035 7860 8253 8442 8777 9170 9380 11004 11790 12060 12539 13755 14070 16506 16884 17554 18340 21105 23580 25078 26331 27510 28140 33012 35108 37617 41265 42210 43885 50156 52662 55020 61439 62695 75234 78993 82530 84420 87770 87773 105324 112851 122878 125390 131655 150468 157986 165060 175540 175546 184317 188085 225702 245756 250780 263310 263319 307195 315972 351092 368634 376170 394965 438865 451404 526620 526638 552951 564255 614390 737268 752340 789930 789957 840113 877730 921585 1053276 1105902 1128510 1228780 1316595 1579860 1579914 1642609 1680226 1755460 1843170 2211804 2257020 2520339 2633190 2764755 3159828 3285218 3360452 3686340 3949785 4200565 4927827 5040678 5266380 5529510 5880791 6570436 7561017 7899570 8213045 8401130 9855654 10081356 11059020 11498263 11761582 12601695 14783481 15122034 15799140 16426090 16802260 17642373 19711308 22996526 23523164 24639135 25203390 29403955 29566962 30244068 32852180 34494789 35284746 37805085 45993052 49278270 50406780 52927119 57491315 58807910 59133924 68989578 70569492 73917405 75610170 88211865 98556540 103484367 105854238 110054803 114982630 117615820 137979156 147834810 151220340 172473945 176423730 206968734 211708476 220109606 229965260 264635595 295669620 330164409 344947890 352847460 413937468 440219212 517421835 529271190 550274015 660328818 689895780 770383621 990493227 1034843670 1058542380 1100548030 1320657636 1540767242 1650822045 1980986454 2069687340 2201096060 2311150863 3081534484 3301644090 3851918105 3961972908 4622301726 4952466135 6603288180 6933452589 7703836210 9244603452 9904932270 11555754315 13866905178 15407672420 19809864540 23111508630 27733810356 34667262945 46223017260 69334525890 138669051780
• Sum of all divisors σ(n): 491657886720
• Sum of proper divisors (its aliquot sum) s(n): 352988834940
• 138669051780 is an abundant number, because the sum of its proper divisors (352988834940) is greater than itself. Its abundance is 214319783160

Bases of 138669051780

• Binary: 10000001001001010100011100111110000100₂
• Hexadecimal: 0x204951CF84
• Base-36: 1RPBZ150

Squares and roots of 138669051780

• 138669051780 squared (138669051780²) is 19229105921564321168400
• 138669051780 cubed (138669051780³) is 2666481884720507470701409699752000
• The square root of 138669051780 is 372382.9370151107
• The cube root of 138669051780 is 5175.9870603371

Scales and comparisons

• 138,669,051,780 seconds is equal to 4,409 years, 12 weeks, 5 days, 21 hours, 3 minutes.
• To count from 1 to 138,669,051,780 would take you about eight thousand, eight hundred eighteen 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 138669051780 cubic inches would be around 431.3 feet tall.

Recreational maths with 138669051780

• 138669051780 backwards is 087150966831
• The number of decimal digits it has is: 12
• The sum of 138669051780's digits is 54
• More coming soon!