55145220

Names of 55145220

• Cardinal: 55145220 can be written as Fifty-five million, one hundred forty-five thousand, two hundred twenty.

Scientific notation

• Scientific notation: 5.514522 × 10⁷

Factors of 55145220

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 103

Divisors of 55145220

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 10 12 13 15 19 20 26 30 38 39 52 57 60 61 65 76 78 95 114 122 130 156 183 190 195 228 244 247 260 285 305 366 380 390 494 570 610 732 741 780 793 915 988 1140 1159 1220 1235 1482 1586 1830 2318 2379 2470 2964 3172 3477 3660 3705 3721 3965 4636 4758 4940 5795 6954 7410 7442 7930 9516 11163 11590 11895 13908 14820 14884 15067 15860 17385 18605 22326 23180 23790 30134 34770 37210 44652 45201 47580 48373 55815 60268 69540 70699 74420 75335 90402 96746 111630 141398 145119 150670 180804 193492 212097 223260 226005 241865 282796 290238 301340 353495 424194 452010 483730 580476 706990 725595 848388 904020 919087 967460 1060485 1413980 1451190 1838174 2120970 2757261 2902380 3676348 4241940 4595435 5514522 9190870 11029044 13786305 18381740 27572610 55145220
• Sum of all divisors σ(n): 177952320
• Sum of proper divisors (its aliquot sum) s(n): 122807100
• 55145220 is an abundant number, because the sum of its proper divisors (122807100) is greater than itself. Its abundance is 67661880

Bases of 55145220

• Binary: 11010010010111001100000100₂
• Hexadecimal: 0x3497304
• Base-36: WTYBO

Squares and roots of 55145220

• 55145220 squared (55145220²) is 3040995288848400
• 55145220 cubed (55145220³) is 167696354222508564648000
• The square root of 55145220 is 7425.9827632443
• The cube root of 55145220 is 380.6296578387

Scales and comparisons

• 55,145,220 seconds is equal to 1 year, 39 weeks, 1 day, 6 hours, 7 minutes.
• To count from 1 to 55,145,220 would take you about two 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 55145220 cubic inches would be around 31.7 feet tall.

Recreational maths with 55145220

• 55145220 backwards is 02254155
• The number of decimal digits it has is: 8
• The sum of 55145220's digits is 24
• More coming soon!