21584740842

Names of 21584740842

• Cardinal: 21584740842 can be written as Twenty-one billion, five hundred eighty-four million, seven hundred forty thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 2.1584740842 × 10¹⁰

Factors of 21584740842

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 101

Divisors of 21584740842

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 42 54 63 81 89 126 162 178 189 243 267 378 486 534 567 623 729 801 1134 1246 1458 1602 1701 1869 2187 2403 3402 3738 4374 4806 5103 5607 7209 7921 10206 11214 14418 15309 15842 16821 21627 23763 30618 33642 43254 47526 50463 55447 64881 71289 100926 110894 129762 142578 151389 166341 194643 213867 302778 332682 389286 427734 454167 499023 641601 704969 908334 998046 1283202 1362501 1409938 1497069 1924803 2114907 2725002 2994138 3849606 4229814 4491207 4934783 5774409 6344721 8982414 9869566 11548818 12689442 13473621 14804349 17323227 19034163 26947242 29608698 34646454 38068326 40420863 44413047 57102489 80841726 88826094 114204978 121262589 133239141 171307467 242525178 266478282 342614934 399717423 513922401 799434846 1027844802 1199152269 1541767203 2398304538 3083534406 3597456807 7194913614 10792370421 21584740842
• Sum of all divisors σ(n): 56125785600
• Sum of proper divisors (its aliquot sum) s(n): 34541044758
• 21584740842 is an abundant number, because the sum of its proper divisors (34541044758) is greater than itself. Its abundance is 12956303916

Bases of 21584740842

• Binary: 10100000110100011010000000111101010₂
• Hexadecimal: 0x5068D01EA
• Base-36: 9WYZWMI

Squares and roots of 21584740842

• 21584740842 squared (21584740842²) is 465901037216302868964
• 21584740842 cubed (21584740842³) is 10056353146332894523969025027688
• The square root of 21584740842 is 146917.4626856863
• The cube root of 21584740842 is 2784.2973425541

Scales and comparisons

• 21,584,740,842 seconds is equal to 686 years, 17 weeks, 9 hours, 20 minutes, 42 seconds.
• To count from 1 to 21,584,740,842 would take you about one thousand, three hundred seventy-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 21584740842 cubic inches would be around 232 feet tall.

Recreational maths with 21584740842

• 21584740842 backwards is 24804748512
• The number of decimal digits it has is: 11
• The sum of 21584740842's digits is 45
• More coming soon!