21406589724

Names of 21406589724

• Cardinal: 21406589724 can be written as Twenty-one billion, four hundred six million, five hundred eighty-nine thousand, seven hundred twenty-four.

Scientific notation

• Scientific notation: 2.1406589724 × 10¹⁰

Factors of 21406589724

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 522

Divisors of 21406589724

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 12 13 26 39 43 52 78 86 97 129 156 167 172 194 197 258 291 334 388 394 501 516 559 582 591 668 788 1002 1118 1164 1182 1261 1677 2004 2171 2236 2364 2522 2561 3354 3783 4171 4342 5044 5122 6513 6708 7181 7566 7683 8342 8471 8684 10244 12513 13026 14362 15132 15366 16199 16684 16942 19109 21543 25026 25413 26052 28724 30732 32398 32899 33884 38218 43086 48597 50052 50826 54223 57327 64796 65798 76436 86172 93353 97194 98697 101652 108446 110123 114654 131596 162669 186706 194388 197394 210587 216892 220246 229308 248417 280059 325338 330369 373412 394788 421174 427687 440492 496834 560118 631761 650676 660738 696557 745251 821687 842348 855374 993668 1120236 1263522 1283061 1321476 1393114 1414657 1490502 1643374 1710748 2089671 2465061 2527044 2566122 2786228 2829314 2981004 3191203 3286748 4179342 4243971 4930122 5132244 5658628 6382406 8358684 8487942 9055241 9573609 9860244 10681931 12764812 16975884 18110482 18390541 19147218 21363862 27165723 32045793 36220964 36781082 38294436 41485639 42727724 54331446 55171623 64091586 73562164 82971278 108662892 110343246 124456917 128183172 137221729 165942556 220686492 248913834 274443458 411665187 497827668 548886916 823330374 1646660748 1783882477 3567764954 5351647431 7135529908 10703294862 21406589724
• Sum of all divisors σ(n): 56226272256
• Sum of proper divisors (its aliquot sum) s(n): 34819682532
• 21406589724 is an abundant number, because the sum of its proper divisors (34819682532) is greater than itself. Its abundance is 13413092808

Bases of 21406589724

• Binary: 10011111011111011101010001100011100₂
• Hexadecimal: 0x4FBEEA31C
• Base-36: 9U0XICC

Squares and roots of 21406589724

• 21406589724 squared (21406589724²) is 458242083611662396176
• 21406589724 cubed (21406589724³) is 9809400278145761056538378495424
• The square root of 21406589724 is 146309.9098625925
• The cube root of 21406589724 is 2776.6160421299

Scales and comparisons

• 21,406,589,724 seconds is equal to 680 years, 34 weeks, 3 days, 10 hours, 55 minutes, 24 seconds.
• To count from 1 to 21,406,589,724 would take you about one thousand, three hundred sixty-one 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 21406589724 cubic inches would be around 231.4 feet tall.

Recreational maths with 21406589724

• 21406589724 backwards is 42798560412
• The number of decimal digits it has is: 11
• The sum of 21406589724's digits is 48
• More coming soon!