67938978420

Names of 67938978420

• Cardinal: 67938978420 can be written as Sixty-seven billion, nine hundred thirty-eight million, nine hundred seventy-eight thousand, four hundred twenty.

Scientific notation

• Scientific notation: 6.793897842 × 10¹⁰

Factors of 67938978420

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 5609

Divisors of 67938978420

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 71 81 90 108 109 135 142 162 180 213 218 270 284 324 327 355 405 426 436 540 545 639 654 710 810 852 981 1065 1090 1278 1308 1420 1620 1635 1917 1962 2130 2180 2556 2943 3195 3270 3834 3924 4260 4905 5419 5751 5886 6390 6540 7668 7739 8829 9585 9810 10838 11502 11772 12780 14715 15478 16257 17658 19170 19620 21676 23004 23217 27095 28755 29430 30956 32514 35316 38340 38695 44145 46434 48771 54190 57510 58860 65028 69651 77390 81285 88290 92868 97542 108380 115020 116085 139302 146313 154780 162570 176580 195084 208953 232170 243855 278604 292626 325140 348255 384749 417906 438939 464340 487710 585252 590671 626859 696510 731565 769498 835812 877878 975420 1044765 1154247 1181342 1253718 1393020 1463130 1538996 1755756 1772013 1923745 2089530 2194695 2308494 2362684 2507436 2926260 2953355 3134295 3462741 3544026 3847490 4179060 4389390 4616988 5316039 5771235 5906710 6268590 6925482 7088052 7694980 8778780 8860065 10388223 10632078 11542470 11813420 12537180 13850964 15948117 17313705 17720130 20776446 21264156 23084940 26580195 31164669 31896234 34627410 35440260 41552892 41937641 47844351 51941115 53160390 62329338 63792468 69254820 79740585 83875282 95688702 103882230 106320780 124658676 125812923 155823345 159481170 167750564 191377404 207764460 209688205 239221755 251625846 311646690 318962340 377438769 419376410 478443510 503251692 623293380 629064615 754877538 838752820 956887020 1132316307 1258129230 1509755076 1887193845 2264632614 2516258460 3396948921 3774387690 4529265228 5661581535 6793897842 7548775380 11323163070 13587795684 16984744605 22646326140 33969489210 67938978420
• Sum of all divisors σ(n): 218151964800
• Sum of proper divisors (its aliquot sum) s(n): 150212986380
• 67938978420 is an abundant number, because the sum of its proper divisors (150212986380) is greater than itself. Its abundance is 82274007960

Bases of 67938978420

• Binary: 111111010001011110101000101001110100₂
• Hexadecimal: 0xFD17A8A74
• Base-36: V7L4390

Squares and roots of 67938978420

• 67938978420 squared (67938978420²) is 4615704788753225696400
• 67938978420 cubed (67938978420³) is 313586268036196059293109071688000
• The square root of 67938978420 is 260651.0664087143
• The cube root of 67938978420 is 4080.4338098419

Scales and comparisons

• 67,938,978,420 seconds is equal to 2,160 years, 12 weeks, 6 days, 18 hours, 27 minutes.
• To count from 1 to 67,938,978,420 would take you about four thousand, three hundred twenty 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 67938978420 cubic inches would be around 340 feet tall.

Recreational maths with 67938978420

• 67938978420 backwards is 02487983976
• The number of decimal digits it has is: 11
• The sum of 67938978420's digits is 63
• More coming soon!