21490347400

Names of 21490347400

• Cardinal: 21490347400 can be written as Twenty-one billion, four hundred ninety million, three hundred forty-seven thousand, four hundred.

Scientific notation

• Scientific notation: 2.14903474 × 10¹⁰

Factors of 21490347400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3794

Divisors of 21490347400

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 20 25 37 40 50 74 100 148 185 200 296 370 740 925 1093 1480 1850 2186 2657 3700 4372 5314 5465 7400 8744 10628 10930 13285 21256 21860 26570 27325 40441 43720 53140 54650 66425 80882 98309 106280 109300 132850 161764 196618 202205 218600 265700 323528 393236 404410 491545 531400 786472 808820 983090 1011025 1617640 1966180 2022050 2457725 2904101 3932360 4044100 4915450 5808202 8088200 9830900 11616404 14520505 19661800 23232808 29041010 58082020 72602525 107451737 116164040 145205050 214903474 290410100 429806948 537258685 580820200 859613896 1074517370 2149034740 2686293425 4298069480 5372586850 10745173700 21490347400
• Sum of all divisors σ(n): 51381744840
• Sum of proper divisors (its aliquot sum) s(n): 29891397440
• 21490347400 is an abundant number, because the sum of its proper divisors (29891397440) is greater than itself. Its abundance is 8401050040

Bases of 21490347400

• Binary: 10100000000111011001010110110001000₂
• Hexadecimal: 0x500ECAD88
• Base-36: 9VESQ6G

Squares and roots of 21490347400

• 21490347400 squared (21490347400²) is 461835031372686760000
• 21490347400 cubed (21490347400³) is 9924995265688937343780424000000
• The square root of 21490347400 is 146595.8641981417
• The cube root of 21490347400 is 2780.2326893201

Scales and comparisons

• 21,490,347,400 seconds is equal to 683 years, 16 weeks, 6 days, 20 hours, 56 minutes, 40 seconds.
• To count from 1 to 21,490,347,400 would take you about one thousand, three hundred sixty-six 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 21490347400 cubic inches would be around 231.7 feet tall.

Recreational maths with 21490347400

• 21490347400 backwards is 00474309412
• The number of decimal digits it has is: 11
• The sum of 21490347400's digits is 34
• More coming soon!