221422740

Names of 221422740

• Cardinal: 221422740 can be written as Two hundred twenty-one million, four hundred twenty-two thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.2142274 × 10⁸

Factors of 221422740

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4385

Divisors of 221422740

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 10 11 12 14 15 20 21 22 28 30 33 35 42 44 55 60 66 70 77 84 105 110 121 132 140 154 165 210 220 231 242 308 330 363 385 420 462 484 605 660 726 770 847 924 1155 1210 1452 1540 1694 1815 2310 2420 2541 3388 3630 4235 4357 4620 5082 7260 8470 8714 10164 12705 13071 16940 17428 21785 25410 26142 30499 43570 47927 50820 52284 60998 65355 87140 91497 95854 121996 130710 143781 152495 182994 191708 239635 261420 287562 304990 335489 365988 457485 479270 527197 575124 609980 670978 718905 914970 958540 1006467 1054394 1341956 1437810 1581591 1677445 1829940 2012934 2108788 2635985 2875620 3163182 3354890 3690379 4025868 5032335 5271970 6326364 6709780 7380758 7907955 10064670 10543940 11071137 14761516 15815910 18451895 20129340 22142274 31631820 36903790 44284548 55355685 73807580 110711370 221422740
• Sum of all divisors σ(n): 779001216
• Sum of proper divisors (its aliquot sum) s(n): 557578476
• 221422740 is an abundant number, because the sum of its proper divisors (557578476) is greater than itself. Its abundance is 336155736

Bases of 221422740

• Binary: 1101001100101010010010010100₂
• Hexadecimal: 0xD32A494
• Base-36: 3NTUVO

Squares and roots of 221422740

• 221422740 squared (221422740²) is 49028029789107600
• 221422740 cubed (221422740³) is 10855920692705826946824000
• The square root of 221422740 is 14880.2802392965
• The cube root of 221422740 is 604.9796136381

Scales and comparisons

• 221,422,740 seconds is equal to 7 years, 2 weeks, 18 hours, 19 minutes.
• To count from 1 to 221,422,740 would take you about ten 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 221422740 cubic inches would be around 50.4 feet tall.

Recreational maths with 221422740

• 221422740 backwards is 047224122
• The number of decimal digits it has is: 9
• The sum of 221422740's digits is 24
• More coming soon!