21812076090

Names of 21812076090

• Cardinal: 21812076090 can be written as Twenty-one billion, eight hundred twelve million, seventy-six thousand and ninety.

Scientific notation

• Scientific notation: 2.181207609 × 10¹⁰

Factors of 21812076090

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 5005

Divisors of 21812076090

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 37 42 45 49 54 63 70 74 81 90 98 105 111 126 135 147 162 185 189 210 222 243 245 259 270 294 315 333 370 378 405 441 486 490 518 555 567 630 666 735 777 810 882 945 999 1110 1134 1215 1295 1323 1470 1554 1665 1701 1813 1890 1998 2205 2331 2430 2590 2646 2835 2997 3330 3402 3626 3885 3969 4410 4662 4951 4995 5439 5670 5994 6615 6993 7770 7938 8505 8991 9065 9902 9990 10878 11655 11907 13230 13986 14853 14985 16317 17010 17982 18130 19845 20979 23310 23814 24755 27195 29706 29970 32634 34657 34965 39690 41958 44559 44955 48951 49510 54390 59535 62937 69314 69930 74265 81585 89118 89910 97902 103971 104895 119070 125874 133677 146853 148530 163170 173285 183187 207942 209790 222795 242599 244755 267354 293706 311913 314685 346570 366374 401031 440559 445590 485198 489510 519855 549561 623826 629370 668385 727797 734265 802062 881118 915935 935739 1039710 1099122 1203093 1212995 1282309 1336770 1455594 1468530 1559565 1648683 1831870 1871478 2005155 2183391 2202795 2406186 2425990 2564618 2747805 2807217 3119130 3297366 3638985 3846927 4010310 4366782 4405590 4678695 4946049 5495610 5614434 6015465 6411545 6550173 7277970 7693854 8243415 8421651 8976163 9357390 9892098 10916955 11540781 12030930 12823090 13100346 14036085 14838147 16486830 16843302 17952326 19234635 19650519 21833910 23081562 24730245 26928489 28072170 29676294 32750865 34622343 38469270 39301038 42108255 44514441 44880815 49460490 53856978 57703905 58951557 65501730 69244686 74190735 80785467 84216510 89028882 89761630 98252595 103867029 115407810 117903114 134642445 148381470 161570934 173111715 196505190 207734058 222572205 242356401 269284890 294757785 311601087 346223430 403927335 445144410 484712802 519335145 589515570 623202174 727069203 807854670 1038670290 1211782005 1454138406 1558005435 2181207609 2423564010 3116010870 3635346015 4362415218 7270692030 10906038045 21812076090
• Sum of all divisors σ(n): 70276961664
• Sum of proper divisors (its aliquot sum) s(n): 48464885574
• 21812076090 is an abundant number, because the sum of its proper divisors (48464885574) is greater than itself. Its abundance is 26652809484

Bases of 21812076090

• Binary: 10100010100000110011101111000111010₂
• Hexadecimal: 0x51419DE3A
• Base-36: A0QCHMI

Squares and roots of 21812076090

• 21812076090 squared (21812076090²) is 475766663355949688100
• 21812076090 cubed (21812076090³) is 10377458662205389351048967529000
• The square root of 21812076090 is 147689.1197414353
• The cube root of 21812076090 is 2794.0381690949

Scales and comparisons

• 21,812,076,090 seconds is equal to 693 years, 28 weeks, 6 days, 14 hours, 1 minute, 30 seconds.
• To count from 1 to 21,812,076,090 would take you about one thousand, three hundred eighty-seven 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 21812076090 cubic inches would be around 232.8 feet tall.

Recreational maths with 21812076090

• 21812076090 backwards is 09067021812
• The number of decimal digits it has is: 11
• The sum of 21812076090's digits is 36
• More coming soon!