18281868868944

Names of 18281868868944

• Cardinal: 18281868868944 can be written as Eighteen trillion, two hundred eighty-one billion, eight hundred sixty-eight million, eight hundred sixty-eight thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 1.8281868868944 × 10¹³

Factors of 18281868868944

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 15865

Divisors of 18281868868944

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 541 1082 1623 2164 3246 4328 4869 6492 8656 9738 12984 15319 19476 25968 30638 38952 45957 61276 77904 91914 122552 137871 183828 245104 275742 367656 551484 735312 1102968 2205936 8287579 16575158 24862737 33150316 49725474 66300632 74588211 99450948 132601264 149176422 198901896 234671761 298352844 397803792 469343522 596705688 704015283 938687044 1193411376 1408030566 1877374088 2112045849 2816061132 3754748176 4224091698 5632122264 8448183396 11264244528 16896366792 33792733584 126957422701 253914845402 380872268103 507829690804 761744536206 1015659381608 1142616804309 1523489072412 2031318763216 2285233608618 3046978144824 4570467217236 6093956289648 9140934434472 18281868868944
• Sum of all divisors σ(n): 51261760354506
• Sum of proper divisors (its aliquot sum) s(n): 32979891485562
• 18281868868944 is an abundant number, because the sum of its proper divisors (32979891485562) is greater than itself. Its abundance is 14698022616618

Bases of 18281868868944

• Binary: 100001010000010010100010011001011110101010000₂
• Hexadecimal: 0x10A0944CBD50
• Base-36: 6HAKOP840

Squares and roots of 18281868868944

• 18281868868944 squared (18281868868944²) is 334226729341263769847675136
• 18281868868944 cubed (18281868868944³) is 6110289238313022294252682169752271376384
• The square root of 18281868868944 is 4275730.2147053197
• The cube root of 18281868868944 is 26343.5033349211

Scales and comparisons

• 18,281,868,868,944 seconds is equal to 581,306 years, 45 weeks, 5 days, 12 hours, 2 minutes, 24 seconds.
• To count from 1 to 18,281,868,868,944 would take you about one million, four hundred fifty-three thousand, two hundred sixty-seven 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 18281868868944 cubic inches would be around 2195.3 feet tall.

Recreational maths with 18281868868944

• 18281868868944 backwards is 44986886818281
• The number of decimal digits it has is: 14
• The sum of 18281868868944's digits is 81
• More coming soon!