21042345625

Names of 21042345625

• Cardinal: 21042345625 can be written as Twenty-one billion, forty-two million, three hundred forty-five thousand, six hundred twenty-five.

Scientific notation

• Scientific notation: 2.1042345625 × 10¹⁰

Factors of 21042345625

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 103

Divisors of 21042345625

• Number of divisors d(n): 180
• Complete list of divisors:
  1 5 7 19 25 29 35 43 49 95 125 133 145 175 203 215 245 301 475 551 625 665 725 817 841 875 931 1015 1075 1225 1247 1421 1505 2107 2375 2755 3325 3625 3857 4085 4205 4375 4655 5075 5375 5719 5887 6125 6235 7105 7525 8729 10535 11875 13775 15979 16625 18125 19285 20425 21025 23275 23693 25375 26875 26999 28595 29435 30625 31175 35525 36163 37625 40033 41209 43645 52675 61103 68875 79895 83125 96425 102125 105125 111853 116375 118465 126875 134995 142975 147175 155875 165851 177625 180815 188125 200165 206045 218225 253141 263375 305515 344375 399475 482125 510625 525625 559265 581875 592325 674975 687097 714875 735875 779375 782971 829255 888125 904075 1000825 1030225 1091125 1160957 1265705 1316875 1527575 1771987 1997375 2410625 2796325 2961625 3374875 3435485 3574375 3679375 3914855 4146275 4520375 4809679 5004125 5151125 5455625 5804785 6328525 7637875 8859935 9986875 13981625 14808125 16874375 17177425 19574275 20731375 22601875 24048395 25020625 25755625 29023925 31642625 33667753 38189375 44299675 69908125 85887125 97871375 103656875 120241975 145119625 158213125 168338765 221498375 429435625 489356875 601209875 725598125 841693825 1107491875 3006049375 4208469125 21042345625
• Sum of all divisors σ(n): 34121390160
• Sum of proper divisors (its aliquot sum) s(n): 13079044535
• 21042345625 is a deficient number, because the sum of its proper divisors (13079044535) is less than itself. Its deficiency is 7963301090

Bases of 21042345625

• Binary: 10011100110001110001011011010011001₂
• Hexadecimal: 0x4E638B699
• Base-36: 9O02HSP

Squares and roots of 21042345625

• 21042345625 squared (21042345625²) is 442780309401956640625
• 21042345625 cubed (21042345625³) is 9317136306380408683295166015625
• The square root of 21042345625 is 145059.8001687581
• The cube root of 21042345625 is 2760.7773498719

Scales and comparisons

• 21,042,345,625 seconds is equal to 669 years, 4 weeks, 1 day, 16 hours, 25 seconds.
• To count from 1 to 21,042,345,625 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 21042345625 cubic inches would be around 230.1 feet tall.

Recreational maths with 21042345625

• 21042345625 backwards is 52654324012
• The number of decimal digits it has is: 11
• The sum of 21042345625's digits is 34
• More coming soon!