21997741328

Names of 21997741328

• Cardinal: 21997741328 can be written as Twenty-one billion, nine hundred ninety-seven million, seven hundred forty-one thousand, three hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1997741328 × 10¹⁰

Factors of 21997741328

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 42

Divisors of 21997741328

• Number of divisors d(n): 100
• Complete list of divisors:
  1 2 4 8 16 17 23 34 46 68 92 136 184 272 289 368 391 529 578 782 1058 1156 1564 2116 2312 3128 4232 4624 4913 6256 6647 8464 8993 9826 12167 13294 17986 19652 24334 26588 35972 39304 48668 53176 71944 78608 97336 106352 112999 143888 152881 194672 206839 225998 279841 305762 413678 451996 559682 611524 827356 903992 1119364 1223048 1654712 1807984 2238728 2446096 2598977 3309424 3516263 4477456 4757297 5197954 7032526 9514594 10395908 14065052 19029188 20791816 28130104 38058376 41583632 56260208 59776471 76116752 80874049 119552942 161748098 239105884 323496196 478211768 646992392 956423536 1293984784 1374858833 2749717666 5499435332 10998870664 21997741328
• Sum of all divisors σ(n): 47342221020
• Sum of proper divisors (its aliquot sum) s(n): 25344479692
• 21997741328 is an abundant number, because the sum of its proper divisors (25344479692) is greater than itself. Its abundance is 3346738364

Bases of 21997741328

• Binary: 10100011111001010101110010100010000₂
• Hexadecimal: 0x51F2AE510
• Base-36: A3SVXU8

Squares and roots of 21997741328

• 21997741328 squared (21997741328²) is 483900623533599203584
• 21997741328 cubed (21997741328³) is 10644720744950024597267642519552
• The square root of 21997741328 is 148316.3555647185
• The cube root of 21997741328 is 2801.9434351343

Scales and comparisons

• 21,997,741,328 seconds is equal to 699 years, 23 weeks, 6 days, 11 hours, 42 minutes, 8 seconds.
• To count from 1 to 21,997,741,328 would take you about one thousand, three hundred ninety-eight 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 21997741328 cubic inches would be around 233.5 feet tall.

Recreational maths with 21997741328

• 21997741328 backwards is 82314779912
• The number of decimal digits it has is: 11
• The sum of 21997741328's digits is 53
• More coming soon!