221390348985

Names of 221390348985

• Cardinal: 221390348985 can be written as Two hundred twenty-one billion, three hundred ninety million, three hundred forty-eight thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 2.21390348985 × 10¹¹

Factors of 221390348985

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 67

Divisors of 221390348985

• Number of divisors d(n): 312
• Complete list of divisors:
  1 3 5 9 13 15 17 27 29 39 45 51 65 81 85 87 117 135 145 153 169 195 221 243 255 261 351 377 405 435 459 493 507 585 663 729 765 783 845 1053 1105 1131 1215 1305 1377 1479 1521 1755 1885 1989 2187 2295 2349 2465 2535 2873 3159 3315 3393 3645 3915 4131 4437 4563 4901 5265 5655 5967 6409 6561 6885 7047 7395 7605 8619 9477 9945 10179 10935 11745 12393 13311 13689 14365 14703 15795 16965 17901 19227 19683 20655 21141 22185 22815 24505 25857 28431 29835 30537 32045 32805 35235 37179 39933 41067 43095 44109 47385 50895 53703 57681 59049 61965 63423 66555 68445 73515 77571 83317 85293 89505 91611 96135 98415 105705 111537 119799 123201 129285 132327 142155 152685 161109 173043 177147 185895 190269 199665 205335 220545 232713 249951 255879 268515 274833 288405 295245 317115 334611 359397 369603 387855 396981 416585 426465 458055 483327 519129 531441 557685 570807 598995 616005 661635 698139 749853 767637 805545 824499 865215 885735 951345 1003833 1078191 1108809 1163565 1190943 1249755 1279395 1374165 1449981 1557387 1673055 1712421 1796985 1848015 1984905 2094417 2249559 2302911 2416635 2473497 2595645 2657205 2854035 3011499 3234573 3326427 3490695 3572829 3749265 3838185 4122495 4349943 4672161 5019165 5137263 5390955 5544045 5954715 6283251 6748677 6908733 7249905 7420491 7786935 8562105 9034497 9703719 9979281 10472085 10718487 11247795 11514555 12367485 13049829 14016483 15057495 15411789 16172865 16632135 17864145 18849753 20246031 21749715 22261473 23360805 25686315 29111157 29937843 31416255 32155461 33743385 34543665 37102455 39149487 42049449 45172485 48518595 49896405 53592435 56549259 60738093 65249145 66784419 70082415 77058945 87333471 89813529 94248765 96466383 101230155 111307365 117448461 126148347 145555785 149689215 160777305 169647777 182214279 195747435 200353257 210247245 262000413 282746295 289399149 303690465 333922095 378445041 436667355 449067645 482331915 508943331 546642837 587242305 630741735 848238885 868197447 911071395 1001766285 1135335123 1310002065 1446995745 1526829993 1639928511 1892225205 2544716655 2604592341 2733214185 3406005369 4340987235 4919785533 5676675615 7634149965 8199642555 13022961705 14759356599 17030026845 24598927665 44278069797 73796782995 221390348985
• Sum of all divisors σ(n): 472652700120
• Sum of proper divisors (its aliquot sum) s(n): 251262351135
• 221390348985 is an abundant number, because the sum of its proper divisors (251262351135) is greater than itself. Its abundance is 29872002150

Bases of 221390348985

• Binary: 11001110001011111001001010001010111001₂
• Hexadecimal: 0x338BE4A2B9
• Base-36: 2TPE3IK9

Squares and roots of 221390348985

• 221390348985 squared (221390348985²) is 49013686623700090530225
• 221390348985 cubed (221390348985³) is 10851157186662389414462606440571625
• The square root of 221390348985 is 470521.3586916113
• The cube root of 221390348985 is 6049.5011221271

Scales and comparisons

• 221,390,348,985 seconds is equal to 7,039 years, 27 weeks, 3 days, 7 hours, 9 minutes, 45 seconds.
• To count from 1 to 221,390,348,985 would take you about fourteen thousand and seventy-nine 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 221390348985 cubic inches would be around 504.1 feet tall.

Recreational maths with 221390348985

• 221390348985 backwards is 589843093122
• The number of decimal digits it has is: 12
• The sum of 221390348985's digits is 54
• More coming soon!