21420043452

Names of 21420043452

• Cardinal: 21420043452 can be written as Twenty-one billion, four hundred twenty million, forty-three thousand, four hundred fifty-two.

Scientific notation

• Scientific notation: 2.1420043452 × 10¹⁰

Factors of 21420043452

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 63591

Divisors of 21420043452

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 9 12 17 18 19 29 34 36 38 51 57 58 68 76 87 102 114 116 153 171 174 204 228 261 306 323 342 348 493 522 551 612 646 684 969 986 1044 1102 1292 1479 1653 1938 1972 2204 2907 2958 3306 3876 4437 4959 5814 5916 6612 8874 9367 9918 11628 17748 18734 19836 28101 37468 56202 63521 84303 112404 127042 168606 190563 254084 337212 381126 571689 762252 1079857 1143378 1206899 1842109 2159714 2286756 2413798 3239571 3620697 3684218 4319428 4827596 5526327 6479142 7241394 7368436 9718713 10862091 11052654 12958284 14482788 16578981 19437426 20517283 21724182 22105308 31315853 33157962 35000071 38874852 41034566 43448364 61551849 62631706 66315924 70000142 82069132 93947559 105000213 123103698 125263412 140000284 184655547 187895118 210000426 246207396 281842677 315000639 369311094 375790236 420000852 563685354 595001207 630001278 738622188 1127370708 1190002414 1260002556 1785003621 2380004828 3570007242 5355010863 7140014484 10710021726 21420043452
• Sum of all divisors σ(n): 62429421600
• Sum of proper divisors (its aliquot sum) s(n): 41009378148
• 21420043452 is an abundant number, because the sum of its proper divisors (41009378148) is greater than itself. Its abundance is 19589334696

Bases of 21420043452

• Binary: 10011111100101110111110110010111100₂
• Hexadecimal: 0x4FCBBECBC
• Base-36: 9U8XVB0

Squares and roots of 21420043452

• 21420043452 squared (21420043452²) is 458818261485568076304
• 21420043452 cubed (21420043452³) is 9827907097591966265335731561408
• The square root of 21420043452 is 146355.8794582575
• The cube root of 21420043452 is 2777.1976078117

Scales and comparisons

• 21,420,043,452 seconds is equal to 681 years, 4 weeks, 5 days, 4 hours, 4 minutes, 12 seconds.
• To count from 1 to 21,420,043,452 would take you about one thousand, three hundred sixty-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 21420043452 cubic inches would be around 231.4 feet tall.

Recreational maths with 21420043452

• 21420043452 backwards is 25434002412
• The number of decimal digits it has is: 11
• The sum of 21420043452's digits is 27
• More coming soon!