21040954440

Names of 21040954440

• Cardinal: 21040954440 can be written as Twenty-one billion, forty million, nine hundred fifty-four thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.104095444 × 10¹⁰

Factors of 21040954440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 9419

Divisors of 21040954440

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 220 264 330 440 660 1320 2221 4442 6663 7177 8884 11105 13326 14354 17768 21531 22210 24431 26652 28708 33315 35885 43062 44420 48862 53304 57416 66630 71770 73293 78947 86124 88840 97724 107655 122155 133260 143540 146586 157894 172248 195448 215310 236841 244310 266520 287080 293172 315788 366465 394735 430620 473682 488620 586344 631576 732930 789470 861240 947364 977240 1184205 1465860 1578940 1894728 2368410 2931720 3157880 4736820 9473640 15940117 31880234 47820351 63760468 79700585 95640702 127520936 159401170 175341287 191281404 239101755 318802340 350682574 382562808 478203510 526023861 637604680 701365148 876706435 956407020 1052047722 1402730296 1753412870 1912814040 2104095444 2630119305 3506825740 4208190888 5260238610 7013651480 10520477220 21040954440
• Sum of all divisors σ(n): 68901909120
• Sum of proper divisors (its aliquot sum) s(n): 47860954680
• 21040954440 is an abundant number, because the sum of its proper divisors (47860954680) is greater than itself. Its abundance is 26820000240

Bases of 21040954440

• Binary: 10011100110001000110111110001001000₂
• Hexadecimal: 0x4E6237C48
• Base-36: 9NZ8OCO

Squares and roots of 21040954440

• 21040954440 squared (21040954440²) is 442721763746155713600
• 21040954440 cubed (21040954440³) is 9315288460579306095003288384000
• The square root of 21040954440 is 145055.0048774601
• The cube root of 21040954440 is 2760.7165068975

Scales and comparisons

• 21,040,954,440 seconds is equal to 669 years, 1 week, 6 days, 13 hours, 34 minutes.
• To count from 1 to 21,040,954,440 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 21040954440 cubic inches would be around 230.1 feet tall.

Recreational maths with 21040954440

• 21040954440 backwards is 04445904012
• 21040954440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21040954440's digits is 33
• More coming soon!