18121194

Names of 18121194

• Cardinal: 18121194 can be written as Eighteen million, one hundred twenty-one thousand, one hundred ninety-four.

Scientific notation

• Scientific notation: 1.8121194 × 10⁷

Factors of 18121194

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 85

Divisors of 18121194

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 23 26 37 39 42 46 63 69 74 78 91 111 117 126 138 161 169 182 207 222 234 259 273 299 322 333 338 414 481 483 507 518 546 598 666 777 819 851 897 962 966 1014 1183 1443 1449 1521 1554 1638 1702 1794 2093 2331 2366 2553 2691 2886 2898 3042 3367 3549 3887 4186 4329 4662 5106 5382 5957 6253 6279 6734 7098 7659 7774 8658 10101 10647 11063 11661 11914 12506 12558 15318 17871 18759 18837 20202 21294 22126 23322 27209 30303 33189 34983 35742 37518 37674 43771 53613 54418 56277 60606 66378 69966 77441 81627 87542 99567 107226 112554 131313 143819 154882 163254 199134 232323 244881 262626 287638 393939 431457 464646 489762 696969 787878 862914 1006733 1294371 1393938 2013466 2588742 3020199 6040398 9060597 18121194
• Sum of all divisors σ(n): 52071552
• Sum of proper divisors (its aliquot sum) s(n): 33950358
• 18121194 is an abundant number, because the sum of its proper divisors (33950358) is greater than itself. Its abundance is 15829164

Bases of 18121194

• Binary: 1000101001000000111101010₂
• Hexadecimal: 0x11481EA
• Base-36: ASEEI

Squares and roots of 18121194

• 18121194 squared (18121194²) is 328377671985636
• 18121194 cubed (18121194³) is 5950595499320075169384
• The square root of 18121194 is 4256.8995759825
• The cube root of 18121194 is 262.6610059877

Scales and comparisons

• 18,121,194 seconds is equal to 29 weeks, 6 days, 17 hours, 39 minutes, 54 seconds.
• To count from 1 to 18,121,194 would take you about forty-four weeks!

  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 18121194 cubic inches would be around 21.9 feet tall.

Recreational maths with 18121194

• 18121194 backwards is 49112181
• The number of decimal digits it has is: 8
• The sum of 18121194's digits is 27
• More coming soon!