21243104128

Names of 21243104128

• Cardinal: 21243104128 can be written as Twenty-one billion, two hundred forty-three million, one hundred four thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1243104128 × 10¹⁰

Factors of 21243104128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1248

Divisors of 21243104128

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 8 16 19 29 32 38 58 64 76 116 128 152 232 304 359 464 551 608 718 839 928 1102 1216 1436 1678 1856 2204 2432 2872 3356 3712 4408 5744 6712 6821 8816 10411 11488 13424 13642 15941 17632 20822 22976 24331 26848 27284 31882 35264 41644 45952 48662 53696 54568 63764 70528 83288 97324 107392 109136 127528 166576 194648 197809 218272 255056 301201 333152 389296 395618 436544 462289 510112 602402 666304 778592 791236 873088 924578 1020224 1204804 1332608 1557184 1582472 1849156 2040448 2409608 3114368 3164944 3698312 4819216 5722819 6329888 7396624 8734829 9638432 11445638 12659776 14793248 17469658 19276864 22891276 25319552 29586496 34939316 38553728 45782552 59172992 69878632 91565104 139757264 165961751 183130208 279514528 331923502 366260416 559029056 663847004 732520832 1118058112 1327694008 2655388016 5310776032 10621552064 21243104128
• Sum of all divisors σ(n): 46267200000
• Sum of proper divisors (its aliquot sum) s(n): 25024095872
• 21243104128 is an abundant number, because the sum of its proper divisors (25024095872) is greater than itself. Its abundance is 3780991744

Bases of 21243104128

• Binary: 10011110010001100000000101110000000₂
• Hexadecimal: 0x4F2300B80
• Base-36: 9RBLG1S

Squares and roots of 21243104128

• 21243104128 squared (21243104128²) is 451269472993050640384
• 21243104128 cubed (21243104128³) is 9586364404579058574054393905152
• The square root of 21243104128 is 145750.1428061047
• The cube root of 21243104128 is 2769.5294820463

Scales and comparisons

• 21,243,104,128 seconds is equal to 675 years, 24 weeks, 1 day, 6 hours, 15 minutes, 28 seconds.
• To count from 1 to 21,243,104,128 would take you about one thousand, three hundred fifty 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 21243104128 cubic inches would be around 230.8 feet tall.

Recreational maths with 21243104128

• 21243104128 backwards is 82140134212
• The number of decimal digits it has is: 11
• The sum of 21243104128's digits is 28
• More coming soon!