18421434668

Names of 18421434668

• Cardinal: 18421434668 can be written as Eighteen billion, four hundred twenty-one million, four hundred thirty-four thousand, six hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8421434668 × 10¹⁰

Factors of 18421434668

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 242

Divisors of 18421434668

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 7 13 14 17 26 28 31 34 52 62 68 83 89 91 119 124 166 169 178 182 217 221 238 332 338 356 364 403 434 442 476 527 581 623 676 806 868 884 1054 1079 1157 1162 1183 1246 1411 1513 1547 1612 2108 2158 2314 2324 2366 2492 2573 2759 2821 2822 2873 3026 3094 3689 4316 4628 4732 5146 5239 5518 5642 5644 5746 6052 6188 6851 7378 7387 7553 8099 9877 10292 10478 10591 11036 11284 11492 13702 14027 14756 14774 15041 15106 16198 18011 18343 19313 19669 19754 20111 20956 21182 27404 28054 29548 30082 30212 32396 33449 35867 36022 36673 36686 38626 39338 39508 40222 42364 43741 46903 47957 51709 56108 60164 66898 71734 72044 73346 73372 77252 78676 80444 87482 89063 93806 95914 96031 98189 103418 105287 125579 128401 133796 137683 143468 146692 174964 178126 187612 191828 192062 196378 206836 210574 228997 234143 238459 251069 251158 255697 256802 275366 306187 328321 356252 384124 392756 421148 434837 457994 466271 468286 476918 502138 502316 511394 513604 550732 568633 609739 612374 623441 656642 672217 869674 879053 915988 932542 936572 953836 1004276 1022788 1137266 1219478 1224748 1246882 1248403 1313284 1344434 1602979 1632527 1669213 1739348 1758106 1789879 1865084 2274532 2438956 2493764 2496806 2688868 2976961 3043859 3205958 3263897 3265054 3338426 3516212 3579758 3892949 3980431 4268173 4993612 5953922 6087718 6411916 6527794 6530108 6676852 7159516 7392229 7785898 7926607 7960862 8536346 8738821 11427689 11907844 12175436 13055588 14784458 15571796 15853214 15921724 17072692 17477642 20838727 21222851 22855378 27250643 29568916 31706428 34955284 38700493 41677454 42445702 45710756 50608337 51745603 54501286 55486249 77400986 83354908 84891404 101216674 103491206 109002572 110972498 148559957 154801972 202433348 206982412 221944996 270903451 297119914 354258359 541806902 594239828 657908381 708516718 1083613804 1315816762 1417033436 2631633524 4605358667 9210717334 18421434668
• Sum of all divisors σ(n): 44625530880
• Sum of proper divisors (its aliquot sum) s(n): 26204096212
• 18421434668 is an abundant number, because the sum of its proper divisors (26204096212) is greater than itself. Its abundance is 7782661544

Bases of 18421434668

• Binary: 10001001010000000001100100100101100₂
• Hexadecimal: 0x44A00C92C
• Base-36: 8GNN9YK

Squares and roots of 18421434668

• 18421434668 squared (18421434668²) is 339349255227392270224
• 18421434668 cubed (18421434668³) is 6251300134805864189939617725632
• The square root of 18421434668 is 135725.5859003747
• The cube root of 18421434668 is 2641.0369868277

Scales and comparisons

• 18,421,434,668 seconds is equal to 585 years, 38 weeks, 5 days, 1 hour, 11 minutes, 8 seconds.
• To count from 1 to 18,421,434,668 would take you about one thousand, one hundred seventy-one 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 18421434668 cubic inches would be around 220.1 feet tall.

Recreational maths with 18421434668

• 18421434668 backwards is 86643412481
• The number of decimal digits it has is: 11
• The sum of 18421434668's digits is 47
• More coming soon!