21821144800

Names of 21821144800

• Cardinal: 21821144800 can be written as Twenty-one billion, eight hundred twenty-one million, one hundred forty-four thousand, eight hundred.

Scientific notation

• Scientific notation: 2.18211448 × 10¹⁰

Factors of 21821144800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 23084

Divisors of 21821144800

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 25 26 28 32 35 40 50 52 56 65 70 80 91 100 104 112 130 140 160 169 175 182 200 208 224 260 280 325 338 350 364 400 416 455 520 560 650 676 700 728 800 845 910 1040 1120 1183 1300 1352 1400 1456 1690 1820 2080 2275 2366 2600 2704 2800 2912 3380 3640 4225 4550 4732 5200 5408 5600 5915 6760 7280 8450 9100 9464 10400 11830 13520 14560 16900 18200 18928 23057 23660 27040 29575 33800 36400 37856 46114 47320 59150 67600 72800 92228 94640 115285 118300 135200 161399 184456 189280 230570 236600 299741 322798 368912 461140 473200 576425 599482 645596 737824 806995 922280 946400 1152850 1198964 1291192 1498705 1613990 1844560 2098187 2305700 2397928 2582384 2997410 3227980 3689120 3896633 4034975 4196374 4611400 4795856 5164768 5994820 6455960 7493525 7793266 8069950 8392748 9222800 9591712 10490935 11989640 12911920 14987050 15586532 16139900 16785496 18445600 19483165 20981870 23979280 25823840 27276431 29974100 31173064 32279800 33570992 38966330 41963740 47958560 52454675 54552862 59948200 62346128 64559600 67141984 77932660 83927480 97415825 104909350 109105724 119896400 124692256 129119200 136382155 155865320 167854960 194831650 209818700 218211448 239792800 272764310 311730640 335709920 389663300 419637400 436422896 545528620 623461280 681910775 779326600 839274800 872845792 1091057240 1363821550 1558653200 1678549600 2182114480 2727643100 3117306400 4364228960 5455286200 10910572400 21821144800
• Sum of all divisors σ(n): 65927249136
• Sum of proper divisors (its aliquot sum) s(n): 44106104336
• 21821144800 is an abundant number, because the sum of its proper divisors (44106104336) is greater than itself. Its abundance is 22284959536

Bases of 21821144800

• Binary: 10100010100101001000011111011100000₂
• Hexadecimal: 0x514A43EE0
• Base-36: A0VQV34

Squares and roots of 21821144800

• 21821144800 squared (21821144800²) is 476162360382567040000
• 21821144800 cubed (21821144800³) is 10390407814217778775547392000000
• The square root of 21821144800 is 147719.8185755725
• The cube root of 21821144800 is 2794.4253370561

Scales and comparisons

• 21,821,144,800 seconds is equal to 693 years, 43 weeks, 6 days, 13 hours, 6 minutes, 40 seconds.
• To count from 1 to 21,821,144,800 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 21821144800 cubic inches would be around 232.9 feet tall.

Recreational maths with 21821144800

• 21821144800 backwards is 00844112812
• The number of decimal digits it has is: 11
• The sum of 21821144800's digits is 31
• More coming soon!