21155357972523024

Names of 21155357972523024

• Cardinal: 21155357972523024 can be written as Twenty-one quadrillion, one hundred fifty-five trillion, three hundred fifty-seven billion, nine hundred seventy-two million, five hundred twenty-three thousand and twenty-four.

Scientific notation

• Scientific notation: 2.1155357972523024 × 10¹⁶

Factors of 21155357972523024

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 552

Divisors of 21155357972523024

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 547 1094 1641 2188 3282 4376 4923 6564 8752 9846 13128 14769 19692 26256 29538 39384 59076 78768 118152 236304 299209 598418 897627 1196836 1795254 2393672 2692881 3590508 4787344 5385762 7181016 8078643 10771524 14362032 16157286 21543048 32314572 43086096 64629144 129258288 163667323 327334646 491001969 654669292 982003938 1309338584 1473005907 1964007876 2618677168 2946011814 3928015752 4419017721 5892023628 7856031504 8838035442 11784047256 17676070884 23568094512 35352141768 70704283536 89526025681 179052051362 268578077043 358104102724 537156154086 716208205448 805734231129 1074312308172 1432416410896 1611468462258 2148624616344 2417202693387 3222936924516 4297249232688 4834405386774 6445873849032 9668810773548 12891747698064 19337621547096 38675243094192 48970736047507 97941472095014 146912208142521 195882944190028 293824416285042 391765888380056 440736624427563 587648832570084 783531776760112 881473248855126 1175297665140168 1322209873282689 1762946497710252 2350595330280336 2644419746565378 3525892995420504 5288839493130756 7051785990841008 10577678986261512 21155357972523024
• Sum of all divisors σ(n): 60834928289932320
• Sum of proper divisors (its aliquot sum) s(n): 39679570317409296
• 21155357972523024 is an abundant number, because the sum of its proper divisors (39679570317409296) is greater than itself. Its abundance is 18524212344886272

Bases of 21155357972523024

• Binary: 1001011001010001010111110011101000011000110100000010000₂
• Hexadecimal: 0x4B28AF9D0C6810
• Base-36: 5SAY5A9OMC0

Squares and roots of 21155357972523024

• 21155357972523024 squared (21155357972523024²) is 447549170945593472680168210104576
• 21155357972523024 cubed (21155357972523024³) is 9468062921659930608120208830391885133201607757824
• The square root of 21155357972523024 is 145448815.6449650297
• The cube root of 21155357972523024 is 276571.0973371441

Scales and comparisons

• 21,155,357,972,523,024 seconds is equal to 672,674,945 years, 36 weeks, 5 days, 12 hours, 50 minutes, 24 seconds.
• To count from 1 to 21,155,357,972,523,024 would take you about two billion, eighteen million, twenty-four thousand, eight hundred thirty-seven 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 21155357972523024 cubic inches would be around 23047.6 feet tall.

Recreational maths with 21155357972523024

• 21155357972523024 backwards is 42032527975355112
• The number of decimal digits it has is: 17
• The sum of 21155357972523024's digits is 63
• More coming soon!