21395672140800

Names of 21395672140800

• Cardinal: 21395672140800 can be written as Twenty-one trillion, three hundred ninety-five billion, six hundred seventy-two million, one hundred forty thousand, eight hundred.

Scientific notation

• Scientific notation: 2.13956721408 × 10¹³

Factors of 21395672140800

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 16701

Divisors of 21395672140800

• Number of divisors d(n): 198
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 128 150 160 192 200 240 256 300 320 384 400 480 512 600 640 768 800 960 1024 1200 1280 1536 1600 1920 2400 2560 3072 3200 3840 4800 5120 6400 7680 9600 12800 15360 16691 19200 25600 33382 38400 50073 66764 76800 83455 100146 133528 166910 200292 250365 267056 333820 400584 417275 500730 534112 667640 801168 834550 1001460 1068224 1251825 1335280 1602336 1669100 2002920 2136448 2503650 2670560 3204672 3338200 4005840 4272896 5007300 5341120 6409344 6676400 8011680 8545792 10014600 10682240 12818688 13352800 16023360 17091584 20029200 21364480 25637376 26705600 32046720 40058400 42728960 51274752 53411200 64093440 80116800 85457920 106822400 128186880 160233600 213644800 256373760 278589481 320467200 427289600 557178962 640934400 835768443 1114357924 1281868800 1392947405 1671536886 2228715848 2785894810 3343073772 4178842215 4457431696 5571789620 6686147544 6964737025 8357684430 8914863392 11143579240 13372295088 13929474050 16715368860 17829726784 20894211075 22287158480 26744590176 27858948100 33430737720 35659453568 41788422150 44574316960 53489180352 55717896200 66861475440 71318907136 83576844300 89148633920 106978360704 111435792400 133722950880 142637814272 167153688600 178297267840 213956721408 222871584800 267445901760 285275628544 334307377200 356594535680 427913442816 445743169600 534891803520 668614754400 713189071360 855826885632 891486339200 1069783607040 1337229508800 1426378142720 1782972678400 2139567214080 2674459017600 3565945356800 4279134428160 5348918035200 7131890713600 10697836070400 21395672140800
• Sum of all divisors σ(n): 70718047680244
• Sum of proper divisors (its aliquot sum) s(n): 49322375539444
• 21395672140800 is an abundant number, because the sum of its proper divisors (49322375539444) is greater than itself. Its abundance is 27926703398644

Bases of 21395672140800

• Binary: 100110111010110010001011100000000110000000000₂
• Hexadecimal: 0x137591700C00
• Base-36: 7L11ARTHC

Squares and roots of 21395672140800

• 21395672140800 squared (21395672140800²) is 457774786356605255024640000
• 21395672140800 cubed (21395672140800³) is 9794399243210690988993569265549312000000
• The square root of 21395672140800 is 4625545.6046611409
• The cube root of 21395672140800 is 27761.4392751483

Scales and comparisons

• 21,395,672,140,800 seconds is equal to 680,316 years, 10 weeks, 5 hours, 20 minutes.
• To count from 1 to 21,395,672,140,800 would take you about one million, seven hundred thousand, seven hundred ninety 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 21395672140800 cubic inches would be around 2313.5 feet tall.

Recreational maths with 21395672140800

• 21395672140800 backwards is 00804127659312
• 21395672140800 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21395672140800's digits is 48
• More coming soon!