21143131904

Names of 21143131904

• Cardinal: 21143131904 can be written as Twenty-one billion, one hundred forty-three million, one hundred thirty-one thousand, nine hundred four.

Scientific notation

• Scientific notation: 2.1143131904 × 10¹⁰

Factors of 21143131904

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1252

Divisors of 21143131904

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 8 16 19 32 38 41 64 76 82 97 128 152 164 194 256 304 328 388 608 656 776 779 1093 1216 1312 1552 1558 1843 2186 2432 2624 3104 3116 3686 3977 4372 4864 5248 6208 6232 7372 7954 8744 10496 12416 12464 14744 15908 17488 20767 24832 24928 29488 31816 34976 41534 44813 49856 58976 63632 69952 75563 83068 89626 99712 106021 117952 127264 139904 151126 166136 179252 199424 212042 235904 254528 279808 302252 332272 358504 424084 471808 509056 604504 664544 717008 848168 851447 1018112 1209008 1329088 1434016 1696336 1702894 2014399 2418016 2658176 2868032 3392672 3405788 4028798 4346861 4836032 5316352 5736064 6785344 6811576 8057596 8693722 9672064 11472128 13570688 13623152 16115192 17387444 19344128 27141376 27246304 32230384 34774888 54492608 64460768 69549776 82590359 108985216 128921536 139099552 165180718 217970432 257843072 278199104 330361436 515686144 556398208 660722872 1112796416 1321445744 2642891488 5285782976 10571565952 21143131904
• Sum of all divisors σ(n): 46019678880
• Sum of proper divisors (its aliquot sum) s(n): 24876546976
• 21143131904 is an abundant number, because the sum of its proper divisors (24876546976) is greater than itself. Its abundance is 3733415072

Bases of 21143131904

• Binary: 10011101100001110101001011100000000₂
• Hexadecimal: 0x4EC3A9700
• Base-36: 9PO2OZK

Squares and roots of 21143131904

• 21143131904 squared (21143131904²) is 447032026709942665216
• 21143131904 cubed (21143131904³) is 9451657106040768918939200651264
• The square root of 21143131904 is 145406.7808047479
• The cube root of 21143131904 is 2765.1780857081

Scales and comparisons

• 21,143,131,904 seconds is equal to 672 years, 14 weeks, 6 days, 4 hours, 11 minutes, 44 seconds.
• To count from 1 to 21,143,131,904 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 21143131904 cubic inches would be around 230.4 feet tall.

Recreational maths with 21143131904

• 21143131904 backwards is 40913134112
• The number of decimal digits it has is: 11
• The sum of 21143131904's digits is 29
• More coming soon!