21656888443904

Names of 21656888443904

• Cardinal: 21656888443904 can be written as Twenty-one trillion, six hundred fifty-six billion, eight hundred eighty-eight million, four hundred forty-three thousand, nine hundred four.

Scientific notation

• Scientific notation: 2.1656888443904 × 10¹³

Factors of 21656888443904

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 988185

Divisors of 21656888443904

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 512 896 1024 1792 3067 3584 6134 7168 12268 21469 24536 42938 49072 85876 98144 171752 196288 343504 392576 687008 785152 985109 1374016 1570304 1970218 2748032 3140608 3940436 5496064 6895763 7880872 10992128 13791526 15761744 21984256 27583052 31523488 55166104 63046976 110332208 126093952 220664416 252187904 441328832 504375808 882657664 1008751616 1765315328 3021329303 3530630656 6042658606 7061261312 12085317212 21149305121 24170634424 42298610242 48341268848 84597220484 96682537696 169194440968 193365075392 338388881936 386730150784 676777763872 773460301568 1353555527744 1546920603136 2707111055488 3093841206272 5414222110976 10828444221952 21656888443904
• Sum of all divisors σ(n): 49493471052480
• Sum of proper divisors (its aliquot sum) s(n): 27836582608576
• 21656888443904 is an abundant number, because the sum of its proper divisors (27836582608576) is greater than itself. Its abundance is 6179694164672

Bases of 21656888443904

• Binary: 100111011001001100011001001001000010000000000₂
• Hexadecimal: 0x13B263248400
• Base-36: 7OD1C7QWW

Squares and roots of 21656888443904

• 21656888443904 squared (21656888443904²) is 469020817071702618554761216
• 21656888443904 cubed (21656888443904³) is 10157531513190568360744264708588530827264
• The square root of 21656888443904 is 4653696.2131088875
• The cube root of 21656888443904 is 27873.9608989471

Scales and comparisons

• 21,656,888,443,904 seconds is equal to 688,622 years, 3 weeks, 2 days, 1 hour, 31 minutes, 44 seconds.
• To count from 1 to 21,656,888,443,904 would take you about one million, seven hundred twenty-one thousand, five hundred fifty-five 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 21656888443904 cubic inches would be around 2322.8 feet tall.

Recreational maths with 21656888443904

• 21656888443904 backwards is 40934488865612
• The number of decimal digits it has is: 14
• The sum of 21656888443904's digits is 68
• More coming soon!