21143948472

Names of 21143948472

• Cardinal: 21143948472 can be written as Twenty-one billion, one hundred forty-three million, nine hundred forty-eight thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.1143948472 × 10¹⁰

Factors of 21143948472

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 94030

Divisors of 21143948472

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 36 53 59 72 106 118 159 177 212 236 318 354 424 472 477 531 636 708 954 1062 1272 1416 1908 2124 3127 3816 4248 6254 9381 12508 18762 25016 28143 37524 56286 75048 93913 112572 187826 225144 281739 375652 563478 751304 845217 1126956 1690434 2253912 3380868 4977389 5540867 6761736 9954778 11081734 14932167 16622601 19909556 22163468 29864334 33245202 39819112 44326936 44796501 49867803 59728668 66490404 89593002 99735606 119457336 132980808 179186004 199471212 293665951 358372008 398942424 587331902 880997853 1174663804 1761995706 2349327608 2642993559 3523991412 5285987118 7047982824 10571974236 21143948472
• Sum of all divisors σ(n): 59334865200
• Sum of proper divisors (its aliquot sum) s(n): 38190916728
• 21143948472 is an abundant number, because the sum of its proper divisors (38190916728) is greater than itself. Its abundance is 17046968256

Bases of 21143948472

• Binary: 10011101100010001110000110010111000₂
• Hexadecimal: 0x4EC470CB8
• Base-36: 9POK720

Squares and roots of 21143948472

• 21143948472 squared (21143948472²) is 447066556986591134784
• 21143948472 cubed (21143948472³) is 9452752244478934548804902850048
• The square root of 21143948472 is 145409.5886521931
• The cube root of 21143948472 is 2765.2136831917

Scales and comparisons

• 21,143,948,472 seconds is equal to 672 years, 16 weeks, 1 day, 15 hours, 1 minute, 12 seconds.
• To count from 1 to 21,143,948,472 would take you about one thousand, three hundred forty-four 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 21143948472 cubic inches would be around 230.4 feet tall.

Recreational maths with 21143948472

• 21143948472 backwards is 27484934112
• The number of decimal digits it has is: 11
• The sum of 21143948472's digits is 45
• More coming soon!