18231312

Names of 18231312

• Cardinal: 18231312 can be written as Eighteen million, two hundred thirty-one thousand, three hundred twelve.

Scientific notation

• Scientific notation: 1.8231312 × 10⁷

Factors of 18231312

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 132

Divisors of 18231312

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 33 43 44 48 66 73 86 88 121 129 132 146 172 176 219 242 258 264 292 344 363 438 473 484 516 528 584 688 726 803 876 946 968 1032 1168 1419 1452 1606 1752 1892 1936 2064 2409 2838 2904 3139 3212 3504 3784 4818 5203 5676 5808 6278 6424 7568 8833 9417 9636 10406 11352 12556 12848 15609 17666 18834 19272 20812 22704 25112 26499 31218 34529 35332 37668 38544 41624 50224 52998 62436 69058 70664 75336 83248 103587 105996 124872 138116 141328 150672 207174 211992 249744 276232 379819 414348 423984 552464 759638 828696 1139457 1519276 1657392 2278914 3038552 4557828 6077104 9115656 18231312
• Sum of all divisors σ(n): 53697952
• Sum of proper divisors (its aliquot sum) s(n): 35466640
• 18231312 is an abundant number, because the sum of its proper divisors (35466640) is greater than itself. Its abundance is 17235328

Bases of 18231312

• Binary: 1000101100011000000010000₂
• Hexadecimal: 0x1163010
• Base-36: AURDC

Squares and roots of 18231312

• 18231312 squared (18231312²) is 332380737241344
• 18231312 cubed (18231312³) is 6059736923436961763328
• The square root of 18231312 is 4269.8140474733
• The cube root of 18231312 is 263.1919738377

Scales and comparisons

• 18,231,312 seconds is equal to 30 weeks, 1 day, 15 minutes, 12 seconds.
• To count from 1 to 18,231,312 would take you about forty-five 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 18231312 cubic inches would be around 21.9 feet tall.

Recreational maths with 18231312

• 18231312 backwards is 21313281
• The number of decimal digits it has is: 8
• The sum of 18231312's digits is 21
• More coming soon!