18901428

Names of 18901428

• Cardinal: 18901428 can be written as Eighteen million, nine hundred one thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8901428 × 10⁷

Factors of 18901428

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 955

Divisors of 18901428

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 7 12 13 14 19 21 26 28 38 39 42 52 57 76 78 84 91 114 133 156 182 228 247 266 273 364 399 494 532 546 741 798 911 988 1092 1482 1596 1729 1822 2733 2964 3458 3644 5187 5466 6377 6916 10374 10932 11843 12754 17309 19131 20748 23686 25508 34618 35529 38262 47372 51927 69236 71058 76524 82901 103854 121163 142116 165802 207708 225017 242326 248703 331604 363489 450034 484652 497406 675051 726978 900068 994812 1350102 1453956 1575119 2700204 3150238 4725357 6300476 9450714 18901428
• Sum of all divisors σ(n): 57200640
• Sum of proper divisors (its aliquot sum) s(n): 38299212
• 18901428 is an abundant number, because the sum of its proper divisors (38299212) is greater than itself. Its abundance is 19397784

Bases of 18901428

• Binary: 1001000000110100110110100₂
• Hexadecimal: 0x12069B4
• Base-36: B94FO

Squares and roots of 18901428

• 18901428 squared (18901428²) is 357263980439184
• 18901428 cubed (18901428³) is 6752799403264644754752
• The square root of 18901428 is 4347.5772563579
• The cube root of 18901428 is 266.3779089619

Scales and comparisons

• 18,901,428 seconds is equal to 31 weeks, 1 day, 18 hours, 23 minutes, 48 seconds.
• To count from 1 to 18,901,428 would take you about forty-six weeks!

  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 18901428 cubic inches would be around 22.2 feet tall.

Recreational maths with 18901428

• 18901428 backwards is 82410981
• The number of decimal digits it has is: 8
• The sum of 18901428's digits is 33
• More coming soon!