221284906920

Names of 221284906920

• Cardinal: 221284906920 can be written as Two hundred twenty-one billion, two hundred eighty-four million, nine hundred six thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.2128490692 × 10¹¹

Factors of 221284906920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 215818

Divisors of 221284906920

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 14 15 18 20 21 22 24 28 30 33 35 36 37 40 42 44 45 55 56 60 63 66 70 72 74 77 84 88 90 99 105 110 111 120 126 132 140 148 154 165 168 180 185 198 210 220 222 231 252 259 264 280 296 308 315 330 333 360 370 385 396 407 420 440 444 462 495 504 518 555 616 630 660 666 693 740 770 777 792 814 840 888 924 990 1036 1110 1155 1221 1260 1295 1320 1332 1386 1480 1540 1554 1628 1665 1848 1980 2035 2072 2220 2310 2331 2442 2520 2590 2664 2772 2849 3080 3108 3256 3330 3465 3663 3885 3960 4070 4440 4620 4662 4884 5180 5544 5698 6105 6216 6660 6930 7326 7770 8140 8547 9240 9324 9768 10360 11396 11655 12210 13320 13860 14245 14652 15540 16280 17094 18315 18648 22792 23310 24420 25641 27720 28490 29304 31080 34188 36630 42735 46620 48840 51282 56980 68376 73260 85470 93240 102564 113960 128205 146520 170940 205128 215753 256410 341880 431506 512820 647259 863012 1025640 1078765 1294518 1510271 1726024 1941777 2157530 2373283 2589036 3020542 3236295 3883554 4315060 4530813 4746566 5178072 6041084 6472590 7119849 7551355 7767108 7982861 8630120 9061626 9493132 9708885 11866415 12082168 12945180 13592439 14239698 15102710 15534216 15965722 16612981 18123252 18986264 19417770 21359547 22654065 23732830 23948583 25890360 27184878 28479396 30205420 31931444 33225962 35599245 36246504 38835540 39914305 42719094 45308130 47465660 47897166 49838943 54369756 55880027 56958792 60410840 63862888 66451924 67962195 71198490 71845749 77671080 79828610 83064905 85438188 87811471 90616260 94931320 95794332 99677886 106797735 108739512 111760054 119742915 132903848 135924390 142396980 143691498 149516829 159657220 166129810 167640081 170876376 175622942 181232520 191588664 199355772 213595470 223520108 239485830 249194715 263434413 271848780 279400135 284793960 287382996 299033658 319314440 332259620 335280162 351245884 359228745 398711544 427190940 439057355 447040216 478971660 498389430 502920243 526868826 543697560 558800270 574765992 598067316 614680297 664519240 670560324 702491768 718457490 747584145 790303239 838200405 854381880 878114710 957943320 996778860 1005840486 1053737652 1117600540 1196134632 1229360594 1317172065 1341120648 1436914980 1495168290 1580606478 1676400810 1756229420 1844040891 1993557720 2011680972 2107475304 2235201080 2458721188 2514601215 2634344130 2873829960 2990336580 3073401485 3161212956 3352801620 3512458840 3688081782 3951516195 4023361944 4917442376 5029202430 5268688260 5532122673 5980673160 6146802970 6322425912 6705603240 7376163564 7903032390 9220204455 10058404860 10537376520 11064245346 12293605940 14752327128 15806064780 18440408910 20116809720 22128490692 24587211880 27660613365 31612129560 36880817820 44256981384 55321226730 73761635640 110642453460 221284906920
• Sum of all divisors σ(n): 920872592640
• Sum of proper divisors (its aliquot sum) s(n): 699587685720
• 221284906920 is an abundant number, because the sum of its proper divisors (699587685720) is greater than itself. Its abundance is 478302778800

Bases of 221284906920

• Binary: 11001110000101100110111011011110101000₂
• Hexadecimal: 0x33859BB7A8
• Base-36: 2TNNBIY0

Squares and roots of 221284906920

• 221284906920 squared (221284906920²) is 48967010030593063886400
• 221284906920 cubed (221284906920³) is 10835660256770492494499637453888000
• The square root of 221284906920 is 470409.2972295509
• The cube root of 221284906920 is 6048.5405665789

Scales and comparisons

• 221,284,906,920 seconds is equal to 7,036 years, 9 weeks, 21 hours, 42 minutes.
• To count from 1 to 221,284,906,920 would take you about fourteen thousand and seventy-two 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 221284906920 cubic inches would be around 504 feet tall.

Recreational maths with 221284906920

• 221284906920 backwards is 029609482122
• 221284906920 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 221284906920's digits is 45
• More coming soon!