18255018543993

Names of 18255018543993

• Cardinal: 18255018543993 can be written as Eighteen trillion, two hundred fifty-five billion, eighteen million, five hundred forty-three thousand, nine hundred ninety-three.

Scientific notation

• Scientific notation: 1.8255018543993 × 10¹³

Factors of 18255018543993

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1265

Divisors of 18255018543993

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 9 11 21 33 49 63 77 99 147 151 231 441 453 539 693 1057 1093 1359 1617 1661 3171 3279 4851 4983 7399 7651 9513 9837 11627 12023 14949 22197 22801 22953 34881 36069 53557 66591 68403 68859 81389 84161 104643 108207 159607 160671 165043 205209 244167 250811 252483 478821 482013 495129 589127 732501 752433 757449 1117249 1155301 1436463 1485387 1755677 1767381 1815473 2257299 3351747 3442951 3465903 5267031 5302143 5446419 8087107 10055241 10328853 10397709 12289739 12708311 15801093 16339257 24100657 24261321 24921493 30986559 36869217 37872461 38124933 72301971 72783963 74764479 88958177 110607651 113617383 114374799 168704599 174450451 216905913 224293437 265107227 266874531 274136423 340852149 506113797 523351353 795321681 800623593 822409269 1221153157 1518341391 1570054059 1855750589 1918954961 2385965043 2467227807 3663459471 3763145443 5567251767 5756864883 10990378413 11289436329 13432684727 16701755301 17270594649 26342018101 33868308987 40298054181 41394599873 79026054303 120894162543 124183799619 184394126707 237078162909 289762199111 372551398857 553182380121 869286597333 1659547140363 2028335393777 2607859791999 6085006181331 18255018543993
• Sum of all divisors σ(n): 33715787294592
• Sum of proper divisors (its aliquot sum) s(n): 15460768750599
• 18255018543993 is a deficient number, because the sum of its proper divisors (15460768750599) is less than itself. Its deficiency is 2794249793394

Bases of 18255018543993

• Binary: 100001001101001010011111001010100101101111001₂
• Hexadecimal: 0x109A53E54B79
• Base-36: 6GY8MPKS9

Squares and roots of 18255018543993

• 18255018543993 squared (18255018543993²) is 333245702041528309676384049
• 18255018543993 cubed (18255018543993³) is 6083406470474065231329074755193069967657
• The square root of 18255018543993 is 4272589.2084300593
• The cube root of 18255018543993 is 26330.6002377691

Scales and comparisons

• 18,255,018,543,993 seconds is equal to 580,453 years, 6 weeks, 2 days, 20 hours, 26 minutes, 33 seconds.
• To count from 1 to 18,255,018,543,993 would take you about one million, four hundred fifty-one thousand, one hundred thirty-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 18255018543993 cubic inches would be around 2194.2 feet tall.

Recreational maths with 18255018543993

• 18255018543993 backwards is 39934581055281
• 18255018543993 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18255018543993's digits is 63
• More coming soon!