21809822720

Names of 21809822720

• Cardinal: 21809822720 can be written as Twenty-one billion, eight hundred nine million, eight hundred twenty-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.180982272 × 10¹⁰

Factors of 21809822720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 3300

Divisors of 21809822720

• Number of divisors d(n): 176
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 197 224 256 280 320 394 448 512 560 640 788 896 985 1024 1120 1280 1379 1576 1792 1970 2240 2560 2758 3089 3152 3584 3940 4480 5120 5516 6178 6304 6895 7168 7880 8960 11032 12356 12608 13790 15445 15760 17920 21623 22064 24712 25216 27580 30890 31520 35840 43246 44128 49424 50432 55160 61780 63040 86492 88256 98848 100864 108115 110320 123560 126080 172984 176512 197696 201728 216230 220640 247120 252160 345968 353024 395392 432460 441280 494240 504320 608533 691936 706048 790784 864920 882560 988480 1008640 1217066 1383872 1412096 1581568 1729840 1765120 1976960 2434132 2767744 3042665 3163136 3459680 3530240 3953920 4259731 4868264 5535488 6085330 6919360 7060480 7907840 8519462 9736528 11070976 12170660 13838720 15815680 17038924 19473056 21298655 22141952 24341320 27677440 34077848 38946112 42597310 48682640 55354880 68155696 77892224 85194620 97365280 110709760 136311392 155784448 170389240 194730560 272622784 311568896 340778480 389461120 545245568 623137792 681556960 778922240 1090491136 1363113920 1557844480 2180982272 2726227840 3115688960 4361964544 5452455680 10904911360 21809822720
• Sum of all divisors σ(n): 60114985920
• Sum of proper divisors (its aliquot sum) s(n): 38305163200
• 21809822720 is an abundant number, because the sum of its proper divisors (38305163200) is greater than itself. Its abundance is 16495340480

Bases of 21809822720

• Binary: 10100010011111101110111110000000000₂
• Hexadecimal: 0x513F77C00
• Base-36: A0P06WW

Squares and roots of 21809822720

• 21809822720 squared (21809822720²) is 475668367077828198400
• 21809822720 cubed (21809822720³) is 10374242759479317449720987648000
• The square root of 21809822720 is 147681.4907833747
• The cube root of 21809822720 is 2793.9419499395

Scales and comparisons

• 21,809,822,720 seconds is equal to 693 years, 25 weeks, 1 day, 12 hours, 5 minutes, 20 seconds.
• To count from 1 to 21,809,822,720 would take you about one thousand, three hundred eighty-six 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 21809822720 cubic inches would be around 232.8 feet tall.

Recreational maths with 21809822720

• 21809822720 backwards is 02722890812
• The number of decimal digits it has is: 11
• The sum of 21809822720's digits is 41
• More coming soon!