18391126899712

Names of 18391126899712

• Cardinal: 18391126899712 can be written as Eighteen trillion, three hundred ninety-one billion, one hundred twenty-six million, eight hundred ninety-nine thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 1.8391126899712 × 10¹³

Factors of 18391126899712

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 46

Divisors of 18391126899712

• Number of divisors d(n): 154
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 37 56 64 74 112 128 148 224 256 259 296 448 512 518 592 896 1024 1036 1184 1369 1792 2072 2368 2738 3584 4144 4736 5476 7168 8288 9472 9583 10952 16576 18944 19166 21904 33152 37888 38332 43808 50653 66304 76664 87616 101306 132608 153328 175232 202612 265216 306656 350464 354571 405224 613312 700928 709142 810448 1226624 1401856 1418284 1620896 1874161 2453248 2836568 3241792 3748322 4906496 5673136 6483584 7496644 9812992 11346272 12967168 13119127 14993288 22692544 25934336 26238254 29986576 45385088 51868672 52476508 59973152 69343957 90770176 104953016 119946304 138687914 181540352 209906032 239892608 277375828 363080704 419812064 479785216 485407699 554751656 839624128 959570432 970815398 1109503312 1679248256 1919140864 1941630796 2219006624 2565726409 3358496512 3883261592 4438013248 5131452818 6716993024 7766523184 8876026496 10262905636 13433986048 15533046368 17752052992 17960084863 20525811272 31066092736 35504105984 35920169726 41051622544 62132185472 71008211968 71840339452 82103245088 124264370944 143680678904 164206490176 248528741888 287361357808 328412980352 497057483776 574722715616 656825960704 1149445431232 1313651921408 2298890862464 2627303842816 4597781724928 9195563449856 18391126899712
• Sum of all divisors σ(n): 43183456108712
• Sum of proper divisors (its aliquot sum) s(n): 24792329209000
• 18391126899712 is an abundant number, because the sum of its proper divisors (24792329209000) is greater than itself. Its abundance is 6401202309288

Bases of 18391126899712

• Binary: 100001011101000000100100101011111110000000000₂
• Hexadecimal: 0x10BA0495FC00
• Base-36: 6IORM4074

Squares and roots of 18391126899712

• 18391126899712 squared (18391126899712²) is 338233548641310320905682944
• 18391126899712 cubed (18391126899712³) is 6220496114802249432047440581848756912128
• The square root of 18391126899712 is 4288487.7170993507
• The cube root of 18391126899712 is 26395.8780772471
• Being both a perfect square and a perfect cube, 18391126899712 is also a perfect sixth number.

Scales and comparisons

• 18,391,126,899,712 seconds is equal to 584,780 years, 49 weeks, 2 days, 1 hour, 1 minute, 52 seconds.
• To count from 1 to 18,391,126,899,712 would take you about one million, four hundred sixty-one thousand, nine hundred fifty-two 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 18391126899712 cubic inches would be around 2199.7 feet tall.

Recreational maths with 18391126899712

• 18391126899712 backwards is 21799862119381
• The number of decimal digits it has is: 14
• The sum of 18391126899712's digits is 67
• More coming soon!