90205408020

Names of 90205408020

• Cardinal: 90205408020 can be written as Ninety billion, two hundred five million, four hundred eight thousand and twenty.

Scientific notation

• Scientific notation: 9.020540802 × 10¹⁰

Factors of 90205408020

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1249

Divisors of 90205408020

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 13 14 15 20 21 26 28 30 35 39 42 52 60 65 70 78 84 91 97 105 130 140 156 181 182 194 195 210 260 273 291 362 364 388 390 420 455 485 543 546 582 679 724 780 905 910 941 970 1086 1092 1164 1261 1267 1358 1365 1455 1810 1820 1882 1940 2037 2172 2353 2522 2534 2715 2716 2730 2823 2910 3395 3620 3764 3783 3801 4074 4705 4706 5044 5068 5430 5460 5646 5820 6305 6335 6587 6790 7059 7566 7602 8148 8827 9410 9412 10185 10860 11292 11765 12233 12610 12670 13174 13580 14115 14118 15132 15204 16471 17557 17654 18820 18915 19005 19761 20370 23530 24466 25220 25340 26348 26481 28230 28236 32935 32942 35114 35295 35308 36699 37830 38010 39522 40740 44135 47060 48932 49413 52671 52962 56460 61165 65870 65884 70228 70590 73398 75660 76020 79044 82355 85631 87785 88270 91277 98805 98826 105342 105924 122330 122899 131740 132405 141180 146796 164710 170321 171262 175570 176540 182554 183495 197610 197652 210684 228241 244660 245798 247065 256893 263355 264810 273831 329420 340642 342524 351140 365108 366990 368697 395220 428155 456385 456482 491596 494130 510963 513786 526710 529620 547662 614495 638939 681284 684723 733980 737394 851605 856310 912770 912964 988260 1021926 1027572 1053420 1095324 1141205 1186601 1192247 1228990 1277878 1284465 1369155 1369446 1474788 1597687 1703210 1712620 1825540 1843485 1916817 2043852 2214173 2282410 2373202 2384494 2457980 2554815 2555756 2568930 2738310 2738892 3194695 3195374 3406420 3423615 3559803 3576741 3686970 3833634 4428346 4564820 4746404 4768988 4793061 5109630 5137860 5476620 5933005 5961235 6389390 6390748 6642519 6847230 7119606 7153482 7373940 7667268 7988435 8306207 8856692 9584085 9586122 10219260 11070865 11866010 11922470 12778780 13285038 13694460 14239212 14306964 15499211 15976870 16521137 16612414 17799015 17883705 19168170 19172244 22141730 23732020 23844940 23965305 24918621 26570076 30998422 31953740 33042274 33212595 33224828 35598030 35767410 38336340 41531035 44283460 46497633 47930610 49563411 49837242 61996844 66084548 66425190 71196060 71534820 77496055 82605685 83062070 92995266 95861220 99126822 99674484 115647959 124593105 132850380 154992110 165211370 166124140 185990532 198253644 214774781 231295918 232488165 247817055 249186210 309984220 330422740 346943877 429549562 462591836 464976330 495634110 498372420 578239795 644324343 693887754 859099124 929952660 991268220 1073873905 1156479590 1288648686 1387775508 1503423467 1734719385 2147747810 2312959180 2577297372 3006846934 3221621715 3469438770 4295495620 4510270401 6013693868 6443243430 6938877540 7517117335 9020540802 12886486860 15034234670 18041081604 22551352005 30068469340 45102704010 90205408020
• Sum of all divisors σ(n): 316137249792
• Sum of proper divisors (its aliquot sum) s(n): 225931841772
• 90205408020 is an abundant number, because the sum of its proper divisors (225931841772) is greater than itself. Its abundance is 135726433752

Bases of 90205408020

• Binary: 1010100000000101010010100101100010100₂
• Hexadecimal: 0x1500A94B14
• Base-36: 15FTYYAC

Squares and roots of 90205408020

• 90205408020 squared (90205408020²) is 8137015636054680320400
• 90205408020 cubed (90205408020³) is 734002815515432261332346329608000
• The square root of 90205408020 is 300342.1515871523
• The cube root of 90205408020 is 4484.8114764115

Scales and comparisons

• 90,205,408,020 seconds is equal to 2,868 years, 13 weeks, 1 day, 1 hour, 47 minutes.
• To count from 1 to 90,205,408,020 would take you about five thousand, seven hundred thirty-six 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 90205408020 cubic inches would be around 373.7 feet tall.

Recreational maths with 90205408020

• 90205408020 backwards is 02080450209
• 90205408020 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 90205408020's digits is 30
• More coming soon!