21821198400

Names of 21821198400

• Cardinal: 21821198400 can be written as Twenty-one billion, eight hundred twenty-one million, one hundred ninety-eight thousand, four hundred.

Scientific notation

• Scientific notation: 2.18211984 × 10¹⁰

Factors of 21821198400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1241

Divisors of 21821198400

• Number of divisors d(n): 189
• 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 72 75 80 90 96 100 120 144 150 160 180 192 200 225 240 288 300 320 360 400 450 480 576 600 720 800 900 960 1200 1231 1440 1600 1800 2400 2462 2880 3600 3693 4800 4924 6155 7200 7386 9848 11079 12310 14400 14772 18465 19696 22158 24620 29544 30775 36930 39392 44316 49240 55395 59088 61550 73860 78784 88632 92325 98480 110790 118176 123100 147720 177264 184650 196960 221580 236352 246200 276975 295440 354528 369300 393920 443160 492400 553950 590880 709056 738600 886320 984800 1107900 1181760 1477200 1515361 1772640 1969600 2215800 2954400 3030722 3545280 4431600 4546083 5908800 6061444 7576805 8863200 9092166 12122888 13638249 15153610 17726400 18184332 22730415 24245776 27276498 30307220 36368664 37884025 45460830 48491552 54552996 60614440 68191245 72737328 75768050 90921660 96983104 109105992 113652075 121228880 136382490 145474656 151536100 181843320 218211984 227304150 242457760 272764980 290949312 303072200 340956225 363686640 436423968 454608300 484915520 545529960 606144400 681912450 727373280 872847936 909216600 1091059920 1212288800 1363824900 1454746560 1818433200 2182119840 2424577600 2727649800 3636866400 4364239680 5455299600 7273732800 10910599200 21821198400
• Sum of all divisors σ(n): 77620746333
• Sum of proper divisors (its aliquot sum) s(n): 55799547933
• 21821198400 is an abundant number, because the sum of its proper divisors (55799547933) is greater than itself. Its abundance is 33978349533

Bases of 21821198400

• Binary: 10100010100101001010001000001000000₂
• Hexadecimal: 0x514A51040
• Base-36: A0VS0G0

Squares and roots of 21821198400

• 21821198400 squared (21821198400²) is 476164699612162560000
• 21821198400 cubed (21821198400³) is 10390484381313402274811904000000
• 21821198400 is a perfect square number. Its square root is 147720
• The cube root of 21821198400 is 2794.4276250673

Scales and comparisons

• 21,821,198,400 seconds is equal to 693 years, 44 weeks, 4 hours.
• To count from 1 to 21,821,198,400 would take you about one thousand, three hundred eighty-seven 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 21821198400 cubic inches would be around 232.9 feet tall.

Recreational maths with 21821198400

• 21821198400 backwards is 00489112812
• 21821198400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21821198400's digits is 36
• More coming soon!