21618055008

Names of 21618055008

• Cardinal: 21618055008 can be written as Twenty-one billion, six hundred eighteen million, fifty-five thousand and eight.

Scientific notation

• Scientific notation: 2.1618055008 × 10¹⁰

Factors of 21618055008

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 327

Divisors of 21618055008

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 59 66 71 72 81 88 96 99 108 118 132 142 144 162 176 177 181 198 213 216 236 264 284 288 297 324 352 354 362 396 426 432 472 528 531 543 568 594 639 648 649 708 724 781 792 852 864 891 944 1056 1062 1086 1136 1188 1278 1296 1298 1416 1448 1562 1584 1593 1629 1704 1782 1888 1917 1947 1991 2124 2172 2272 2343 2376 2556 2592 2596 2832 2896 3124 3168 3186 3258 3408 3564 3834 3894 3982 4189 4248 4344 4686 4752 4779 4887 5112 5192 5664 5751 5792 5841 5973 6248 6372 6516 6816 7029 7128 7668 7788 7964 8378 8496 8688 9372 9504 9558 9774 10224 10384 10679 11502 11682 11946 12496 12567 12744 12851 13032 14058 14256 14661 15336 15576 15928 16756 16992 17376 17523 17919 18744 19116 19548 20448 20768 21087 21358 23004 23364 23892 24992 25134 25488 25702 26064 28116 28512 29322 30672 31152 31856 32037 33512 35046 35838 37488 37701 38232 38553 39096 42174 42716 46008 46079 46728 47784 50268 50976 51404 52128 52569 53757 56232 58644 61344 62304 63261 63712 64074 67024 70092 71676 74976 75402 76464 77106 78192 84348 85432 92016 92158 93456 95568 96111 100536 102808 105138 107514 112464 113103 115659 117288 117469 126522 128148 134048 138237 140184 141361 143352 150804 152928 154212 156384 161271 168696 170864 184032 184316 186912 191136 192222 201072 205616 210276 215028 224928 226206 231318 234576 234938 253044 256296 276474 280368 282722 286704 288333 301608 308424 322542 337392 339309 341728 346977 352407 368632 384444 402144 411232 414711 420552 424083 430056 452412 462636 469152 469876 506088 512592 552948 560736 565444 573408 576666 603216 616848 645084 674784 678618 693954 704814 737264 758209 768888 829422 841104 848166 860112 864999 904824 925272 939752 1012176 1025184 1040931 1057221 1105896 1130888 1153332 1206432 1233696 1244133 1272249 1290168 1357236 1387908 1409628 1474528 1516418 1537776 1658844 1682208 1696332 1720224 1729998 1809648 1850544 1879504 2024352 2081862 2114442 2211792 2261776 2274627 2306664 2488266 2544498 2580336 2714472 2775816 2819256 3032836 3075552 3171663 3317688 3392664 3459996 3619296 3701088 3732399 3759008 3816747 4163724 4228884 4423584 4523552 4549254 4613328 4976532 5088996 5160672 5428944 5551632 5638512 6065672 6343326 6635376 6785328 6823881 6919992 7464798 7633494 8327448 8340299 8457768 9098508 9226656 9514989 9953064 10177992 10857888 11103264 11277024 11450241 12131344 12686652 13270752 13570656 13647762 13839984 14929596 15266988 16654896 16680598 16915536 18197016 19029978 19906128 20355984 20471643 22900482 24262688 25020897 25373304 27295524 27679968 29859192 30533976 33309792 33361196 33831072 36394032 38059956 39812256 40711968 40943286 45800964 50041794 50746608 54591048 59718384 61067952 61414929 66722392 72788064 75062691 76119912 81886572 91601928 100083588 101493216 109182096 119436768 122135904 122829858 133444784 150125382 152239824 163773144 183203856 200167176 218364192 225188073 245659716 266889568 300250764 304479648 327546288 366407712 400334352 450376146 491319432 600501528 655092576 675564219 800668704 900752292 982638864 1201003056 1351128438 1801504584 1965277728 2402006112 2702256876 3603009168 5404513752 7206018336 10809027504 21618055008
• Sum of all divisors σ(n): 71922090240
• Sum of proper divisors (its aliquot sum) s(n): 50304035232
• 21618055008 is an abundant number, because the sum of its proper divisors (50304035232) is greater than itself. Its abundance is 28685980224

Bases of 21618055008

• Binary: 10100001000100010010101011101100000₂
• Hexadecimal: 0x508895760
• Base-36: 9XITY00

Squares and roots of 21618055008

• 21618055008 squared (21618055008²) is 467340302328913880064
• 21618055008 cubed (21618055008³) is 10102988363201810768118266560512
• The square root of 21618055008 is 147030.7961210847
• The cube root of 21618055008 is 2785.7290463191

Scales and comparisons

• 21,618,055,008 seconds is equal to 687 years, 20 weeks, 23 hours, 16 minutes, 48 seconds.
• To count from 1 to 21,618,055,008 would take you about one thousand, three hundred seventy-four 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 21618055008 cubic inches would be around 232.1 feet tall.

Recreational maths with 21618055008

• 21618055008 backwards is 80055081612
• 21618055008 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21618055008's digits is 36
• More coming soon!