18015643212

Names of 18015643212

• Cardinal: 18015643212 can be written as Eighteen billion, fifteen million, six hundred forty-three thousand, two hundred twelve.

Scientific notation

• Scientific notation: 1.8015643212 × 10¹⁰

Factors of 18015643212

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1172

Divisors of 18015643212

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 12 14 19 21 28 37 38 41 42 49 57 74 76 82 84 98 111 114 123 133 147 148 164 196 222 228 246 259 266 287 294 399 444 492 518 532 574 588 703 777 779 798 861 931 1036 1063 1148 1406 1517 1554 1558 1596 1722 1813 1862 2009 2109 2126 2337 2793 2812 3034 3108 3116 3189 3444 3626 3724 4018 4218 4252 4551 4674 4921 5439 5453 5586 6027 6068 6378 7252 7441 8036 8436 9102 9348 9842 10619 10878 10906 11172 12054 12756 14763 14882 16359 18204 19684 20197 21238 21756 21812 22323 24108 28823 29526 29764 31857 32718 34447 38171 39331 40394 42476 43583 44646 52087 57646 59052 60591 63714 65436 68894 74333 76342 78662 80788 86469 87166 89292 103341 104174 114513 115292 117993 121182 127428 130749 137788 141379 148666 152684 156261 157324 172938 174332 201761 206682 208348 222999 229026 235986 242364 261498 275317 282758 297332 305081 312522 345876 403522 413364 424137 445998 458052 471972 522996 550634 565516 605283 610162 625044 747289 807044 825951 828077 848274 891996 915243 989653 1101268 1210566 1220324 1412327 1494578 1612571 1651902 1656154 1696548 1830486 1927219 1979306 2135567 2241867 2421132 2484231 2824654 2968959 2989156 3225142 3303804 3312308 3660972 3854438 3958612 4236981 4271134 4483734 4837713 4968462 5231023 5649308 5781657 5796539 5937918 6406701 6450284 7708876 8473962 8542268 8967468 9675426 9936924 10462046 11287997 11563314 11593078 11875836 12813402 15693069 16947924 17389617 19350852 20924092 22575994 23126628 23186156 25626804 30638849 31386138 33863991 34779234 36617161 40575773 45151988 61277698 62772276 67727982 69558468 73234322 79015979 81151546 91916547 109851483 121727319 122555396 135455964 146468644 158031958 162303092 183833094 214471943 219702966 237047937 243454638 316063916 367666188 428943886 439405932 474095874 486909276 643415829 857887772 948191748 1286831658 1501303601 2573663316 3002607202 4503910803 6005214404 9007821606 18015643212
• Sum of all divisors σ(n): 54204756480
• Sum of proper divisors (its aliquot sum) s(n): 36189113268
• 18015643212 is an abundant number, because the sum of its proper divisors (36189113268) is greater than itself. Its abundance is 18173470056

Bases of 18015643212

• Binary: 10000110001110100001110011001001100₂
• Hexadecimal: 0x431D0E64C
• Base-36: 89Y1R9O

Squares and roots of 18015643212

• 18015643212 squared (18015643212²) is 324563400342081676944
• 18015643212 cubed (18015643212³) is 5847218420236462241185750504128
• The square root of 18015643212 is 134222.3647981215
• The cube root of 18015643212 is 2621.5003746279

Scales and comparisons

• 18,015,643,212 seconds is equal to 572 years, 43 weeks, 5 days, 9 hours, 20 minutes, 12 seconds.
• To count from 1 to 18,015,643,212 would take you about one thousand, one hundred forty-five 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 18015643212 cubic inches would be around 218.5 feet tall.

Recreational maths with 18015643212

• 18015643212 backwards is 21234651081
• The number of decimal digits it has is: 11
• The sum of 18015643212's digits is 33
• More coming soon!