218420845920

Names of 218420845920

• Cardinal: 218420845920 can be written as Two hundred eighteen billion, four hundred twenty million, eight hundred forty-five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.1842084592 × 10¹¹

Factors of 218420845920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2121

Divisors of 218420845920

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 72 80 90 96 108 113 120 135 144 160 180 216 226 240 257 270 288 339 360 432 452 480 514 540 565 678 720 771 864 904 1017 1028 1080 1130 1285 1356 1440 1542 1695 1741 1808 2034 2056 2160 2260 2313 2570 2712 3051 3084 3390 3482 3616 3855 4068 4112 4320 4520 4626 5085 5140 5223 5424 6102 6168 6780 6939 6964 7710 8136 8224 8705 9040 9252 10170 10280 10446 10848 11565 12204 12336 13560 13878 13928 15255 15420 15669 16272 17410 18080 18504 20340 20560 20892 23130 24408 24672 26115 27120 27756 27856 29041 30510 30840 31338 32544 34695 34820 37008 40680 41120 41784 46260 47007 48816 52230 54240 55512 55712 58082 61020 61680 62676 69390 69640 74016 78345 81360 83568 87123 92520 94014 97632 104460 111024 116164 122040 123360 125352 138780 139280 145205 156690 162720 167136 174246 185040 188028 196733 208920 222048 232328 235035 244080 250704 261369 277560 278560 290410 313380 348492 370080 376056 393466 417840 435615 447437 464656 470070 488160 501408 522738 555120 580820 590199 626760 696984 752112 784107 786932 835680 871230 894874 929312 940140 983665 1045476 1110240 1161640 1180398 1253520 1306845 1342311 1393968 1504224 1568214 1573864 1742460 1770597 1789748 1880280 1967330 2090952 2237185 2323280 2360796 2507040 2613690 2684622 2787936 2950995 3136428 3147728 3484920 3541194 3579496 3760560 3920535 3934660 4026933 4181904 4474370 4646560 4721592 5227380 5311791 5369244 5901990 6272856 6295456 6711555 6969840 7082388 7158992 7521120 7841070 7869320 8053866 8363808 8852985 8948740 9443184 10454760 10623582 10738488 11803980 12080799 12545712 13423110 13939680 14164776 14317984 15682140 15738640 16107732 17705970 17897480 18886368 20134665 20909520 21247164 21476976 23607960 24161598 25091424 26558955 26846220 28329552 31364280 31477280 32215464 35411940 35794960 40269330 41819040 42494328 42953952 47215920 48323196 50560381 53117910 53692440 56659104 60403995 62728560 64430928 70823880 71589920 80538660 84988656 94431840 96646392 101120762 106235820 107384880 120807990 125457120 128861856 141647760 151681143 161077320 169977312 193292784 202241524 212471640 214769760 241615980 252801905 283295520 303362286 322154640 386585568 404483048 424943280 455043429 483231960 505603810 606724572 644309280 758405715 808966096 849886560 910086858 966463920 1011207620 1213449144 1365130287 1516811430 1617932192 1820173716 1932927840 2022415240 2275217145 2426898288 2730260574 3033622860 3640347432 4044830480 4550434290 4853796576 5460521148 6067245720 6825651435 7280694864 8089660960 9100868580 10921042296 12134491440 13651302870 14561389728 18201737160 21842084592 24268982880 27302605740 36403474320 43684169184 54605211480 72806948640 109210422960 218420845920
• Sum of all divisors σ(n): 774683844480
• Sum of proper divisors (its aliquot sum) s(n): 556262998560
• 218420845920 is an abundant number, because the sum of its proper divisors (556262998560) is greater than itself. Its abundance is 337842152640

Bases of 218420845920

• Binary: 11001011011010111001011001110101100000₂
• Hexadecimal: 0x32DAE59D60
• Base-36: 2SCA4RC0

Squares and roots of 218420845920

• 218420845920 squared (218420845920²) is 47707665932408380646400
• 218420845920 cubed (218420845920³) is 10420348749825404043684044402688000
• The square root of 218420845920 is 467355.1603652195
• The cube root of 218420845920 is 6022.3320170451

Scales and comparisons

• 218,420,845,920 seconds is equal to 6,945 years, 5 weeks, 4 days, 1 hour, 12 minutes.
• To count from 1 to 218,420,845,920 would take you about thirteen thousand, eight hundred ninety 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 218420845920 cubic inches would be around 501.9 feet tall.

Recreational maths with 218420845920

• 218420845920 backwards is 029548024812
• 218420845920 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 218420845920's digits is 45
• More coming soon!