20121090990

Names of 20121090990

• Cardinal: 20121090990 can be written as Twenty billion, one hundred twenty-one million, ninety thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 2.012109099 × 10¹⁰

Factors of 20121090990

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 277

Divisors of 20121090990

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 5 6 7 10 11 13 14 15 21 22 26 30 33 35 37 39 42 49 55 65 66 70 74 77 78 91 98 105 110 111 130 143 147 154 165 169 182 185 195 199 210 222 231 245 259 273 286 294 330 338 370 385 390 398 407 429 455 462 481 490 507 518 539 546 555 597 637 715 735 770 777 814 845 858 910 962 995 1001 1014 1078 1110 1155 1183 1194 1221 1274 1295 1365 1393 1430 1443 1470 1554 1617 1690 1813 1859 1911 1990 2002 2035 2145 2189 2310 2366 2405 2442 2535 2587 2590 2695 2730 2786 2849 2886 2985 3003 3185 3234 3367 3549 3626 3718 3822 3885 4070 4179 4290 4378 4810 5005 5070 5174 5291 5390 5439 5577 5698 5915 5970 6006 6105 6253 6370 6567 6734 6965 7007 7098 7215 7363 7761 7770 8085 8281 8358 8547 9065 9295 9555 9751 10010 10101 10582 10878 10945 11154 11830 12210 12506 12935 13013 13134 13930 14014 14245 14430 14726 15015 15323 15522 15873 16170 16562 16835 17094 17745 18109 18130 18590 18759 19110 19502 19943 20202 20895 21021 21890 22089 23569 24843 25870 26026 26455 27195 27885 28457 28490 29253 30030 30646 31265 31746 32835 33631 33670 35035 35490 36218 36815 37037 37518 38805 39039 39886 41405 41790 42042 42735 43771 44178 45969 47138 48755 49686 50505 51541 52910 54327 54390 55770 56914 58506 59829 62530 65065 65670 67262 68783 70070 70707 73630 74074 76615 77610 78078 79365 80993 82810 85371 85470 87542 90545 91091 91938 93795 95719 97510 99715 100893 101010 103082 105105 107261 108654 110445 111111 117845 119658 124215 126763 130130 131313 137566 141414 142285 146265 153230 154623 158730 161986 168155 170742 181090 182182 185185 187590 191438 195195 199199 199430 201786 206349 210210 214522 218855 220890 222222 229845 235417 235690 242979 248430 253526 257705 259259 262626 271635 273273 284570 287157 292530 299145 306397 309246 321783 336310 343915 353535 360787 369941 370370 380289 390390 398398 404965 412698 426855 437710 455455 459690 470834 478595 481481 485958 504465 515410 518518 536305 543270 546546 555555 566951 574314 597597 598290 612794 633815 643566 656565 670033 687830 706251 707070 721574 739882 760578 773115 777777 809930 853710 910910 919191 957190 962962 995995 1008930 1031745 1052909 1072610 1082361 1109823 1111110 1133902 1177085 1195194 1214895 1244347 1267630 1296295 1313130 1340066 1366365 1394393 1412502 1435785 1444443 1531985 1546230 1555554 1608915 1647919 1700853 1803935 1838382 1849705 1901445 1991990 2010099 2063490 2105818 2164722 2219646 2354170 2407405 2429790 2488694 2589587 2592590 2732730 2788786 2834755 2871570 2888886 2987985 3063970 3158727 3217830 3295838 3350165 3370367 3401706 3531255 3607870 3699410 3733041 3802890 3888885 3968657 4020198 4183179 4595955 4690231 4814810 4943757 5179174 5264545 5411805 5549115 5669510 5975970 6221735 6317454 6700330 6740734 6971965 7062510 7222215 7370363 7466082 7768761 7777770 7937314 8239595 8366358 8504265 8710429 9191910 9380462 9887514 10050495 10111101 10529090 10823610 11098230 11905971 12443470 12947935 13687817 13943930 14070693 14444430 14740726 15537522 15793635 16479190 16851835 17008530 17420858 18127109 18665205 19843285 20100990 20222202 20915895 22111089 23451155 23811942 24718785 25895870 26131287 27375634 28141386 31587270 33703670 36254218 36851815 37330410 38843805 39686570 41063451 41831790 43552145 44222178 46902310 49437570 50555505 51592541 52262574 54381327 59529855 60973003 68439085 70353465 73703630 77687610 82126902 87104290 90635545 95814719 101111010 103185082 108762654 110555445 119059710 121946006 130656435 136878170 140706930 154777623 181271090 182919009 191629438 205317255 221110890 257962705 261312870 271906635 287444157 304865015 309555246 365838018 410634510 479073595 515925410 543813270 574888314 609730030 670703033 773888115 914595045 958147190 1341406066 1437220785 1547776230 1829190090 2012109099 2874441570 3353515165 4024218198 6707030330 10060545495 20121090990
• Sum of all divisors σ(n): 68494118400
• Sum of proper divisors (its aliquot sum) s(n): 48373027410
• 20121090990 is an abundant number, because the sum of its proper divisors (48373027410) is greater than itself. Its abundance is 28251936420

Bases of 20121090990

• Binary: 10010101111010011110111101110101110₂
• Hexadecimal: 0x4AF4F7BAE
• Base-36: 98RKT66

Squares and roots of 20121090990

• 20121090990 squared (20121090990²) is 404858302627859180100
• 20121090990 cubed (20121090990³) is 8146190745232110671698897299000
• The square root of 20121090990 is 141848.8314720991
• The cube root of 20121090990 is 2719.8847895801

Scales and comparisons

• 20,121,090,990 seconds is equal to 639 years, 40 weeks, 6 days, 23 hours, 56 minutes, 30 seconds.
• To count from 1 to 20,121,090,990 would take you about one thousand, two hundred 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 20121090990 cubic inches would be around 226.7 feet tall.

Recreational maths with 20121090990

• 20121090990 backwards is 09909012102
• 20121090990 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20121090990's digits is 33
• More coming soon!