18231921477

Names of 18231921477

• Cardinal: 18231921477 can be written as Eighteen billion, two hundred thirty-one million, nine hundred twenty-one thousand, four hundred seventy-seven.

Scientific notation

• Scientific notation: 1.8231921477 × 10¹⁰

Factors of 18231921477

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 324

Divisors of 18231921477

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 9 11 21 27 33 63 67 73 77 99 121 163 189 201 219 231 297 363 469 489 511 603 657 693 737 803 847 1089 1141 1407 1467 1533 1793 1809 1971 2079 2211 2409 2541 3267 3423 4221 4401 4599 4891 5159 5379 5621 6633 7227 7623 8107 8833 10269 10921 11899 12551 12663 13797 14673 15477 16137 16863 19723 19899 21681 22869 24321 26499 30807 32763 34237 35697 37653 44019 46431 48411 50589 53801 56749 59169 61831 72963 76447 79497 83293 98289 102711 107091 112959 120131 130889 132057 138061 139293 151767 161403 170247 177507 185493 218889 229341 238491 249879 294867 308133 321273 338877 360393 376607 392667 414183 484209 510741 532521 556479 591811 688023 749637 797233 840917 916223 924399 1081179 1129821 1178001 1242549 1321441 1439779 1452627 1532223 1669437 1775433 2064069 2248911 2391699 2522751 2748669 3243537 3389463 3534003 3727647 3964323 4142677 4319337 5326299 5580631 7175097 7568253 8246007 8769563 9250087 10078453 10168389 11892969 12428031 12958011 15978897 16741893 21525291 22704759 24738021 26308689 27750261 30235359 35678907 37284093 38874033 50225679 61386941 78926067 83250783 90706077 96465193 111852279 150677037 184160823 236778201 249752349 272118231 289395579 552482469 675256351 868186737 1657447407 2025769053 2604560211 6077307159 18231921477
• Sum of all divisors σ(n): 35122554880
• Sum of proper divisors (its aliquot sum) s(n): 16890633403
• 18231921477 is a deficient number, because the sum of its proper divisors (16890633403) is less than itself. Its deficiency is 1341288074

Bases of 18231921477

• Binary: 10000111110101101010000101101000101₂
• Hexadecimal: 0x43EB50B45
• Base-36: 8DITCN9

Squares and roots of 18231921477

• 18231921477 squared (18231921477²) is 332402960743493861529
• 18231921477 cubed (18231921477³) is 6060344678997693622028239158333
• The square root of 18231921477 is 135025.6326665423
• The cube root of 18231921477 is 2631.9490666139

Scales and comparisons

• 18,231,921,477 seconds is equal to 579 years, 37 weeks, 2 days, 14 hours, 37 minutes, 57 seconds.
• To count from 1 to 18,231,921,477 would take you about one thousand, one hundred fifty-nine 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 18231921477 cubic inches would be around 219.3 feet tall.

Recreational maths with 18231921477

• 18231921477 backwards is 77412913281
• The number of decimal digits it has is: 11
• The sum of 18231921477's digits is 45
• More coming soon!