221828940

Names of 221828940

• Cardinal: 221828940 can be written as Two hundred twenty-one million, eight hundred twenty-eight thousand, nine hundred forty.

Scientific notation

• Scientific notation: 2.2182894 × 10⁸

Factors of 221828940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 387

Divisors of 221828940

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 61 89 90 122 178 180 183 227 244 267 305 356 366 445 454 534 549 610 681 732 801 890 908 915 1068 1098 1135 1220 1335 1362 1602 1780 1830 2043 2196 2270 2670 2724 2745 3204 3405 3660 4005 4086 4540 5340 5429 5490 6810 8010 8172 10215 10858 10980 13620 13847 16020 16287 20203 20430 21716 27145 27694 32574 40406 40860 41541 48861 54290 55388 60609 65148 69235 80812 81435 83082 97722 101015 108580 121218 124623 138470 162870 166164 181827 195444 202030 207705 242436 244305 249246 276940 303045 325740 363654 404060 415410 488610 498492 606090 623115 727308 830820 909135 977220 1212180 1232383 1246230 1818270 2464766 2492460 3636540 3697149 4929532 6161915 7394298 11091447 12323830 14788596 18485745 22182894 24647660 36971490 44365788 55457235 73942980 110914470 221828940
• Sum of all divisors σ(n): 694643040
• Sum of proper divisors (its aliquot sum) s(n): 472814100
• 221828940 is an abundant number, because the sum of its proper divisors (472814100) is greater than itself. Its abundance is 250985160

Bases of 221828940

• Binary: 1101001110001101011101001100₂
• Hexadecimal: 0xD38D74C
• Base-36: 3O2KB0

Squares and roots of 221828940

• 221828940 squared (221828940²) is 49208078621523600
• 221828940 cubed (221828940³) is 10915775920049241372984000
• The square root of 221828940 is 14893.9229217827
• The cube root of 221828940 is 605.3493326659

Scales and comparisons

• 221,828,940 seconds is equal to 7 years, 2 weeks, 5 days, 11 hours, 9 minutes.
• To count from 1 to 221,828,940 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 221828940 cubic inches would be around 50.4 feet tall.

Recreational maths with 221828940

• 221828940 backwards is 049828122
• 221828940 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 221828940's digits is 36
• More coming soon!