18917532018

Names of 18917532018

• Cardinal: 18917532018 can be written as Eighteen billion, nine hundred seventeen million, five hundred thirty-two thousand and eighteen.

Scientific notation

• Scientific notation: 1.8917532018 × 10¹⁰

Factors of 18917532018

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 561

Divisors of 18917532018

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 7 9 11 14 18 21 22 27 33 42 49 54 63 66 77 81 98 99 126 147 154 162 189 198 231 243 257 281 294 297 378 441 462 486 514 539 562 567 594 693 771 843 882 891 1078 1134 1323 1386 1542 1617 1686 1701 1782 1799 1967 2079 2313 2529 2646 2673 2827 3091 3234 3402 3598 3934 3969 4158 4626 4851 5058 5346 5397 5654 5901 6182 6237 6939 7587 7938 8481 9273 9702 10794 11802 11907 12474 12593 13769 13878 14553 15174 16191 16962 17703 18546 18711 19789 20817 21637 22761 23814 25186 25443 27538 27819 29106 32382 35406 37422 37779 39578 41307 41634 43274 43659 45522 48573 50886 53109 55638 59367 62451 64911 68283 72217 75558 76329 82614 83457 87318 97146 106218 113337 118734 123921 124902 129822 130977 136566 138523 144434 145719 151459 152658 159327 166914 178101 194733 216651 226674 228987 247842 250371 261954 277046 291438 302918 318654 340011 356202 371763 389466 415569 433302 437157 454377 457974 477981 500742 505519 534303 584199 649953 680022 686961 743526 751113 794387 831138 874314 908754 955962 1011038 1020033 1068606 1115289 1168398 1246707 1299906 1363131 1373922 1502226 1516557 1588774 1602909 1752597 1949859 2040066 2230578 2383161 2493414 2726262 3033114 3060099 3205818 3345867 3505194 3538633 3740121 3899718 4089393 4549671 4766322 4808727 5257791 5560709 5849577 6120198 6691734 7077266 7149483 7480242 8178786 9099342 9617454 10515582 10615899 11121418 11220363 11699154 12268179 13649013 14298966 16682127 17548731 21231798 21448449 22440726 24536358 27298026 31847697 33364254 33661089 35097462 36804537 38924963 40947039 42896898 50046381 63695394 64345347 67322178 73609074 77849926 81894078 95543091 100092762 116774889 122841117 128690694 150139143 191086182 193036041 233549778 245682234 286629273 300278286 350324667 386072082 450417429 573258546 700649334 859887819 900834858 1050974001 1351252287 1719775638 2101948002 2702504574 3152922003 6305844006 9458766009 18917532018
• Sum of all divisors σ(n): 54343493568
• Sum of proper divisors (its aliquot sum) s(n): 35425961550
• 18917532018 is an abundant number, because the sum of its proper divisors (35425961550) is greater than itself. Its abundance is 16508429532

Bases of 18917532018

• Binary: 10001100111100100101010000101110010₂
• Hexadecimal: 0x46792A172
• Base-36: 8OV0D4I

Squares and roots of 18917532018

• 18917532018 squared (18917532018²) is 357873017652055152324
• 18917532018 cubed (18917532018³) is 6770074269811032527591137109832
• The square root of 18917532018 is 137541.0194014861
• The cube root of 18917532018 is 2664.5353881949

Scales and comparisons

• 18,917,532,018 seconds is equal to 601 years, 26 weeks, 6 days, 22 hours, 18 seconds.
• To count from 1 to 18,917,532,018 would take you about one thousand, two hundred three 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 18917532018 cubic inches would be around 222 feet tall.

Recreational maths with 18917532018

• 18917532018 backwards is 81023571981
• The number of decimal digits it has is: 11
• The sum of 18917532018's digits is 45
• More coming soon!