21042543152

Names of 21042543152

• Cardinal: 21042543152 can be written as Twenty-one billion, forty-two million, five hundred forty-three thousand, one hundred fifty-two.

Scientific notation

• Scientific notation: 2.1042543152 × 10¹⁰

Factors of 21042543152

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 19783

Divisors of 21042543152

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 4 8 16 17 34 68 136 233 272 289 466 578 932 1156 1864 2312 3728 3961 4624 7922 15844 19531 31688 39062 63376 67337 78124 134674 156248 269348 312496 332027 538696 664054 1077392 1328108 2656216 4550723 5312432 5644459 9101446 11288918 18202892 22577836 36405784 45155672 72811568 77362291 90311344 154724582 309449164 618898328 1237796656 1315158947 2630317894 5260635788 10521271576 21042543152
• Sum of all divisors σ(n): 43497334296
• Sum of proper divisors (its aliquot sum) s(n): 22454791144
• 21042543152 is an abundant number, because the sum of its proper divisors (22454791144) is greater than itself. Its abundance is 1412247992

Bases of 21042543152

• Binary: 10011100110001110111011101000110000₂
• Hexadecimal: 0x4E63BBA30
• Base-36: 9O06Q7K

Squares and roots of 21042543152

• 21042543152 squared (21042543152²) is 442788622303782095104
• 21042543152 cubed (21042543152³) is 9317398692041964389030887927808
• The square root of 21042543152 is 145060.4810139551
• The cube root of 21042543152 is 2760.7859884265

Scales and comparisons

• 21,042,543,152 seconds is equal to 669 years, 4 weeks, 3 days, 22 hours, 52 minutes, 32 seconds.
• To count from 1 to 21,042,543,152 would take you about one thousand, three hundred thirty-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 21042543152 cubic inches would be around 230.1 feet tall.

Recreational maths with 21042543152

• 21042543152 backwards is 25134524012
• The number of decimal digits it has is: 11
• The sum of 21042543152's digits is 29
• More coming soon!