21139732800

Names of 21139732800

• Cardinal: 21139732800 can be written as Twenty-one billion, one hundred thirty-nine million, seven hundred thirty-two thousand, eight hundred.

Scientific notation

• Scientific notation: 2.11397328 × 10¹⁰

Factors of 21139732800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 21988

Divisors of 21139732800

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 64 67 72 75 80 90 96 100 120 134 144 150 160 180 192 200 201 225 240 268 288 300 320 335 360 400 402 450 480 536 576 600 603 670 720 800 804 900 960 1005 1072 1200 1206 1340 1440 1600 1608 1675 1800 2010 2144 2400 2412 2680 2880 3015 3216 3350 3600 4020 4288 4800 4824 5025 5360 6030 6432 6700 7200 8040 9648 10050 10720 12060 12864 13400 14400 15075 16080 19296 20100 21440 21911 24120 26800 30150 32160 38592 40200 43822 48240 53600 60300 64320 65733 80400 87644 96480 107200 109555 120600 131466 160800 175288 192960 197199 219110 241200 262932 321600 328665 350576 394398 438220 482400 525864 547775 657330 701152 788796 876440 964800 985995 1051728 1095550 1314660 1402304 1468037 1577592 1643325 1752880 1971990 2103456 2191100 2629320 2936074 3155184 3286650 3505760 3943980 4206912 4382200 4404111 4929975 5258640 5872148 6310368 6573300 7011520 7340185 7887960 8764400 8808222 9859950 10517280 11744296 12620736 13146600 13212333 14680370 15775920 17528800 17616444 19719900 21034560 22020555 23488592 26293200 26424666 29360740 31551840 35057600 35232888 36700925 39439800 44041110 46977184 52586400 52849332 58721480 63103680 66061665 70465776 73401850 78879600 88082220 93954368 105172800 105698664 110102775 117442960 132123330 140931552 146803700 157759200 176164440 211397328 220205550 234885920 264246660 281863104 293607400 315518400 330308325 352328880 422794656 440411100 469771840 528493320 587214800 660616650 704657760 845589312 880822200 1056986640 1174429600 1321233300 1409315520 1761644400 2113973280 2348859200 2642466600 3523288800 4227946560 5284933200 7046577600 10569866400 21139732800
• Sum of all divisors σ(n): 76260508896
• Sum of proper divisors (its aliquot sum) s(n): 55120776096
• 21139732800 is an abundant number, because the sum of its proper divisors (55120776096) is greater than itself. Its abundance is 33981043296

Bases of 21139732800

• Binary: 10011101100000001101011100101000000₂
• Hexadecimal: 0x4EC06B940
• Base-36: 9PM1U80

Squares and roots of 21139732800

• 21139732800 squared (21139732800²) is 446888302855395840000
• 21139732800 cubed (21139732800³) is 9447099313808545095831552000000
• The square root of 21139732800 is 145395.0920767273
• The cube root of 21139732800 is 2765.0298952433

Scales and comparisons

• 21,139,732,800 seconds is equal to 672 years, 9 weeks, 1 day, 20 hours.
• To count from 1 to 21,139,732,800 would take you about one thousand, three hundred forty-four 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 21139732800 cubic inches would be around 230.4 feet tall.

Recreational maths with 21139732800

• 21139732800 backwards is 00823793112
• 21139732800 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21139732800's digits is 36
• More coming soon!