21429927486

Names of 21429927486

• Cardinal: 21429927486 can be written as Twenty-one billion, four hundred twenty-nine million, nine hundred twenty-seven thousand, four hundred eighty-six.

Scientific notation

• Scientific notation: 2.1429927486 × 10¹⁰

Factors of 21429927486

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1752

Divisors of 21429927486

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 9 11 18 22 27 33 54 66 81 99 162 198 243 297 313 486 594 626 729 891 939 1423 1458 1782 1878 2187 2673 2817 2846 3443 4269 4374 5346 5634 6886 8019 8451 8538 10329 12807 15653 16038 16902 20658 24057 25353 25614 30987 31306 38421 46959 48114 50706 61974 76059 76842 92961 93918 115263 140877 152118 185922 228177 230526 278883 281754 345789 422631 445399 456354 557766 684531 691578 836649 845262 890798 1037367 1267893 1336197 1369062 1673298 2074734 2509947 2535786 2672394 3112101 3803679 4008591 4899389 5019894 6224202 7529841 7607358 8017182 9798778 11411037 12025773 14698167 15059682 22822074 24051546 29396334 34233111 36077319 44094501 68466222 72154638 88189002 108231957 132283503 216463914 264567006 324695871 396850509 649391742 793701018 974087613 1190551527 1948175226 2381103054 3571654581 7143309162 10714963743 21429927486
• Sum of all divisors σ(n): 52797818880
• Sum of proper divisors (its aliquot sum) s(n): 31367891394
• 21429927486 is an abundant number, because the sum of its proper divisors (31367891394) is greater than itself. Its abundance is 9937963908

Bases of 21429927486

• Binary: 10011111101010100101011111000111110₂
• Hexadecimal: 0x4FD52BE3E
• Base-36: 9UETPVI

Squares and roots of 21429927486

• 21429927486 squared (21429927486²) is 459241792055218280196
• 21429927486 cubed (21429927486³) is 9841518302284018652501909867256
• The square root of 21429927486 is 146389.6426869059
• The cube root of 21429927486 is 2777.6247108125

Scales and comparisons

• 21,429,927,486 seconds is equal to 681 years, 21 weeks, 13 hours, 38 minutes, 6 seconds.
• To count from 1 to 21,429,927,486 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 21429927486 cubic inches would be around 231.5 feet tall.

Recreational maths with 21429927486

• 21429927486 backwards is 68472992412
• 21429927486 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21429927486's digits is 54
• More coming soon!