21801220391272

Names of 21801220391272

• Cardinal: 21801220391272 can be written as Twenty-one trillion, eight hundred one billion, two hundred twenty million, three hundred ninety-one thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 2.1801220391272 × 10¹³

Factors of 21801220391272

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1269

Divisors of 21801220391272

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 4 7 8 14 28 31 49 56 62 98 124 196 217 248 343 392 434 686 868 961 1229 1372 1519 1736 1922 2401 2458 2744 3038 3844 4802 4916 6076 6727 7688 8603 9604 9832 10633 12152 13454 17206 19208 21266 26908 29791 34412 38099 42532 47089 53816 59582 60221 68824 74431 76198 85064 94178 119164 120442 148862 152396 188356 208537 238328 240884 266693 297724 304792 329623 376712 417074 421547 481768 533386 595448 659246 834148 843094 923521 1066772 1181069 1318492 1459759 1668296 1686188 1847042 1866851 2133544 2307361 2362138 2636984 2919518 2950829 3372376 3694084 3733702 4614722 4724276 5839036 5901658 6464647 7388168 7467404 8267483 9229444 9448552 10218313 11678072 11803316 12929294 13067957 14934808 16534966 18458888 20436626 23606632 25858588 26135914 33069932 36613139 40873252 45252529 51717176 52271828 57872381 66139864 71528191 73226278 81746504 90505058 91475699 104543656 115744762 143056382 146452556 181010116 182951398 231489524 256291973 286112764 292905112 316767703 362020232 365902796 405106667 462979048 512583946 572225528 633535406 731805592 810213334 1025167892 1135007309 1267070812 1620426668 1794043811 2050335784 2217373921 2270014618 2534141624 2835746669 3240853336 3588087622 4434747842 4540029236 5671493338 7176175244 7945051163 8869495684 9080058472 11342986676 12558306677 14352350488 15890102326 17738991368 22685973352 25116613354 31780204652 50233226708 55615358141 63560409304 87908146739 100466453416 111230716282 175816293478 222461432564 351632586956 389307506987 444922865128 703265173912 778615013974 1557230027948 2725152548909 3114460055896 5450305097818 10900610195636 21801220391272
• Sum of all divisors σ(n): 49317003227250
• Sum of proper divisors (its aliquot sum) s(n): 27515782835978
• 21801220391272 is an abundant number, because the sum of its proper divisors (27515782835978) is greater than itself. Its abundance is 5714562444706

Bases of 21801220391272

• Binary: 100111101001111111101111111110100000101101000₂
• Hexadecimal: 0x13D3FDFF4168
• Base-36: 7Q7CBQA94

Squares and roots of 21801220391272

• 21801220391272 squared (21801220391272²) is 475293210548814056773777984
• 21801220391272 cubed (21801220391272³) is 10361972033649941068673197682330139355648
• The square root of 21801220391272 is 4669177.6996888863
• The cube root of 21801220391272 is 27935.7456856859

Scales and comparisons

• 21,801,220,391,272 seconds is equal to 693,211 years, 19 weeks, 2 days, 17 hours, 7 minutes, 52 seconds.
• To count from 1 to 21,801,220,391,272 would take you about one million, seven hundred thirty-three thousand and twenty-eight 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 21801220391272 cubic inches would be around 2328 feet tall.

Recreational maths with 21801220391272

• 21801220391272 backwards is 27219302210812
• The number of decimal digits it has is: 14
• The sum of 21801220391272's digits is 40
• More coming soon!