72138485078820

Names of 72138485078820

• Cardinal: 72138485078820 can be written as Seventy-two trillion, one hundred thirty-eight billion, four hundred eighty-five million, seventy-eight thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 7.213848507882 × 10¹³

Factors of 72138485078820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 12764122

Divisors of 72138485078820

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 243 270 324 405 486 540 810 972 1163 1215 1620 2326 2430 3489 4652 4860 5815 6978 10467 11630 13956 17445 20934 23260 31401 34890 41868 52335 62802 69780 94203 104670 125604 157005 188406 209340 282609 314010 376812 471015 565218 628020 942030 1130436 1413045 1884060 2826090 5652180 12762949 25525898 38288847 51051796 63814745 76577694 114866541 127629490 153155388 191444235 229733082 255258980 344599623 382888470 459466164 574332705 689199246 765776940 1033798869 1148665410 1378398492 1722998115 2067597738 2297330820 3101396607 3445996230 4135195476 5168994345 6202793214 6891992460 10337988690 12405586428 14843309687 15506983035 20675977380 29686619374 31013966070 44529929061 59373238748 62027932140 74216548435 89059858122 133589787183 148433096870 178119716244 222649645305 267179574366 296866193740 400769361549 445299290610 534359148732 667948935915 801538723098 890598581220 1202308084647 1335897871830 1603077446196 2003846807745 2404616169294 2671795743660 3606924253941 4007693615490 4809232338588 6011540423235 7213848507882 8015387230980 12023080846470 14427697015764 18034621269705 24046161692940 36069242539410 72138485078820
• Sum of all divisors σ(n): 227119656254400
• Sum of proper divisors (its aliquot sum) s(n): 154981171175580
• 72138485078820 is an abundant number, because the sum of its proper divisors (154981171175580) is greater than itself. Its abundance is 82842686096760

Bases of 72138485078820

• Binary: 10000011001110000001100110001110001101100100100₂
• Hexadecimal: 0x419C0CC71B24
• Base-36: PKJYNGE90

Squares and roots of 72138485078820

• 72138485078820 squared (72138485078820²) is 5203961029467135781612592400
• 72138485078820 cubed (72138485078820³) is 375405865074975740917422914965218532968000
• The square root of 72138485078820 is 8493437.7656411895
• The cube root of 72138485078820 is 41628.3316539709

Scales and comparisons

• 72,138,485,078,820 seconds is equal to 2,293,780 years, 35 weeks, 4 days, 21 hours, 27 minutes.
• To count from 1 to 72,138,485,078,820 would take you about five million, seven hundred thirty-four thousand, four hundred fifty-one 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 72138485078820 cubic inches would be around 3469 feet tall.

Recreational maths with 72138485078820

• 72138485078820 backwards is 02887058483127
• The number of decimal digits it has is: 14
• The sum of 72138485078820's digits is 63
• More coming soon!