18212918108

Names of 18212918108

• Cardinal: 18212918108 can be written as Eighteen billion, two hundred twelve million, nine hundred eighteen thousand, one hundred eight.

Scientific notation

• Scientific notation: 1.8212918108 × 10¹⁰

Factors of 18212918108

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 674

Divisors of 18212918108

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 7 11 14 17 22 28 34 44 61 68 77 119 122 127 154 187 238 244 254 308 374 427 449 476 508 671 748 854 889 898 1037 1309 1342 1397 1708 1778 1796 2074 2159 2618 2684 2794 3143 3556 4148 4318 4697 4939 5236 5588 6286 7259 7633 7747 8636 9394 9779 9878 11407 12572 14518 15113 15266 15494 18788 19558 19756 22814 23749 27389 29036 30226 30532 30988 34573 39116 45628 47498 53431 54229 54778 57023 60452 69146 79849 83963 85217 94996 106862 108458 109556 114046 131699 138292 159698 166243 167926 170434 191723 213724 216916 228092 263398 301279 319396 332486 335852 340868 383446 399161 465613 526796 587741 596519 602558 627253 664972 766892 798322 921893 931226 969391 1175482 1193038 1205116 1254506 1448689 1596644 1843786 1862452 1938782 2108953 2350964 2386076 2509012 2897378 3259291 3478403 3687572 3877564 4217906 4390771 5121743 5794756 6518582 6785737 6956806 8435812 8781542 10140823 10243486 10663301 13037164 13571474 13913612 17563084 20281646 20486972 21326602 24348821 27142948 35852201 38262433 40563292 42653204 48697642 59132851 71704402 74643107 76524866 97395284 118265702 143408804 149286214 153049732 236531404 267837031 298572428 413929957 535674062 650461361 827859914 1071348124 1300922722 1655719828 2601845444 4553229527 9106459054 18212918108
• Sum of all divisors σ(n): 43197235200
• Sum of proper divisors (its aliquot sum) s(n): 24984317092
• 18212918108 is an abundant number, because the sum of its proper divisors (24984317092) is greater than itself. Its abundance is 6771398984

Bases of 18212918108

• Binary: 10000111101100100110001001101011100₂
• Hexadecimal: 0x43D93135C
• Base-36: 8D7I1JW

Squares and roots of 18212918108

• 18212918108 squared (18212918108²) is 331710386008714299664
• 18212918108 cubed (18212918108³) is 6041414095949782514149003915712
• The square root of 18212918108 is 134955.2448332409
• The cube root of 18212918108 is 2631.0343104661

Scales and comparisons

• 18,212,918,108 seconds is equal to 579 years, 5 weeks, 6 days, 15 hours, 55 minutes, 8 seconds.
• To count from 1 to 18,212,918,108 would take you about one thousand, one hundred fifty-eight 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 18212918108 cubic inches would be around 219.3 feet tall.

Recreational maths with 18212918108

• 18212918108 backwards is 80181921281
• The number of decimal digits it has is: 11
• The sum of 18212918108's digits is 41
• More coming soon!