642938231895180

Names of 642938231895180

• Cardinal: 642938231895180 can be written as Six hundred forty-two trillion, nine hundred thirty-eight billion, two hundred thirty-one million, eight hundred ninety-five thousand, one hundred eighty.

Scientific notation

• Scientific notation: 6.4293823189518 × 10¹⁴

Factors of 642938231895180

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 305175914

Divisors of 642938231895180

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 10 12 13 15 20 26 30 37 39 52 60 65 73 74 78 111 130 146 148 156 185 195 219 222 260 292 365 370 390 438 444 481 555 730 740 780 876 949 962 1095 1110 1443 1460 1898 1924 2190 2220 2405 2701 2847 2886 3796 4380 4745 4810 5402 5694 5772 7215 8103 9490 9620 10804 11388 13505 14235 14430 16206 18980 27010 28470 28860 32412 35113 40515 54020 56940 70226 81030 105339 140452 162060 175565 210678 351130 421356 526695 702260 1053390 2106780 305175781 610351562 915527343 1220703124 1525878905 1831054686 3051757810 3662109372 3967285153 4577636715 6103515620 7934570306 9155273430 11291503897 11901855459 15869140612 18310546860 19836425765 22277832013 22583007794 23803710918 33874511691 39672851530 44555664026 45166015588 47607421836 56457519485 59509277295 66833496039 67749023382 79345703060 89111328052 111389160065 112915038970 119018554590 133666992078 135498046764 146789550661 169372558455 222778320130 225830077940 238037109180 267333984156 289611816169 293579101322 334167480195 338745116910 440368651983 445556640260 579223632338 587158202644 668334960390 677490233820 733947753305 824279784481 868835448507 880737303966 1158447264676 1336669920780 1448059080845 1467895506610 1648559568962 1737670897014 1761474607932 2201843259915 2472839353443 2896118161690 2935791013220 3297119137924 3475341794028 4121398922405 4344177242535 4403686519830 4945678706886 5792236323380 8242797844810 8688354485070 8807373039660 9891357413772 10715637198253 12364196767215 16485595689620 17376708970140 21431274396506 24728393534430 32146911594759 42862548793012 49456787068860 53578185991265 64293823189518 107156371982530 128587646379036 160734557973795 214312743965060 321469115947590 642938231895180
• Sum of all divisors σ(n): 2018378911210368
• Sum of proper divisors (its aliquot sum) s(n): 1375440679315188
• 642938231895180 is an abundant number, because the sum of its proper divisors (1375440679315188) is greater than itself. Its abundance is 732502447420008

Bases of 642938231895180

• Binary: 10010010001011111110111000111011001011010010001100₂
• Hexadecimal: 0x248BFB8ECB48C
• Base-36: 6BWHQV3HXO

Squares and roots of 642938231895180

• 642938231895180 squared (642938231895180²) is 413369570032500253054507232400
• 642938231895180 cubed (642938231895180³) is 265771100475966496907610803105295668699832000
• The square root of 642938231895180 is 25356226.6888269477
• The cube root of 642938231895180 is 86309.0660600603

Scales and comparisons

• 642,938,231,895,180 seconds is equal to 20,443,447 years, 1 week, 6 days, 13 minutes.
• To count from 1 to 642,938,231,895,180 would take you about fifty-one million, one hundred eight thousand, six hundred seventeen 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 642938231895180 cubic inches would be around 7192.4 feet tall.

Recreational maths with 642938231895180

• 642938231895180 backwards is 081598132839246
• The number of decimal digits it has is: 15
• The sum of 642938231895180's digits is 69
• More coming soon!