21488081727870

Names of 21488081727870

• Cardinal: 21488081727870 can be written as Twenty-one trillion, four hundred eighty-eight billion, eighty-one million, seven hundred twenty-seven thousand, eight hundred seventy.

Scientific notation

• Scientific notation: 2.148808172787 × 10¹³

Factors of 21488081727870

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3660

Divisors of 21488081727870

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 54 79 90 135 158 237 270 395 474 711 790 1185 1422 2133 2370 3555 3571 4266 6241 7110 7142 10665 10713 12482 17855 18723 21330 21426 31205 32139 35710 37446 53565 56169 62410 64278 93615 96417 107130 112338 160695 168507 187230 192834 280845 282109 321390 337014 482085 561690 564218 842535 846327 964170 1410545 1685070 1692654 2538981 2821090 4231635 5077962 7616943 8463270 12694905 12752041 15233886 22286611 25389810 25504082 38084715 38256123 44573222 63760205 66859833 76169430 76512246 111433055 114768369 127520410 133719666 191280615 200579499 222866110 229536738 334299165 344305107 382561230 401158998 573841845 601738497 668598330 688610214 1002897495 1007411239 1147683690 1203476994 1721525535 2005794990 2014822478 3008692485 3022233717 3443051070 5037056195 6017384970 6044467434 9066701151 10074112390 15111168585 18133402302 27200103453 30222337170 45333505755 54400206906 79585487881 90667011510 136000517265 159170975762 238756463643 272001034530 397927439405 477512927286 716269390929 795854878810 1193782318215 1432538781858 2148808172787 2387564636430 3581346954645 4297616345574 7162693909290 10744040863935 21488081727870
• Sum of all divisors σ(n): 58052325436560
• Sum of proper divisors (its aliquot sum) s(n): 36564243708690
• 21488081727870 is an abundant number, because the sum of its proper divisors (36564243708690) is greater than itself. Its abundance is 15076161980820

Bases of 21488081727870

• Binary: 100111000101100010101011110100111000101111110₂
• Hexadecimal: 0x138B157A717E
• Base-36: 7M7HL1Z7I

Squares and roots of 21488081727870

• 21488081727870 squared (21488081727870²) is 461737656343620564734736900
• 21488081727870 cubed (21488081727870³) is 9921856496346870451116870474361847403000
• The square root of 21488081727870 is 4635523.8892567473
• The cube root of 21488081727870 is 27801.3498162243

Scales and comparisons

• 21,488,081,727,870 seconds is equal to 683,254 years, 27 weeks, 4 days, 15 hours, 4 minutes, 30 seconds.
• To count from 1 to 21,488,081,727,870 would take you about one million, seven hundred eight thousand, one hundred thirty-six 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 21488081727870 cubic inches would be around 2316.8 feet tall.

Recreational maths with 21488081727870

• 21488081727870 backwards is 07872718088412
• The number of decimal digits it has is: 14
• The sum of 21488081727870's digits is 63
• More coming soon!