28007964

Names of 28007964

• Cardinal: 28007964 can be written as Twenty-eight million, seven thousand, nine hundred sixty-four.

Scientific notation

• Scientific notation: 2.8007964 × 10⁷

Factors of 28007964

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 248

Divisors of 28007964

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 37 43 54 74 86 108 111 129 148 163 172 222 258 326 333 387 444 489 516 652 666 774 978 999 1161 1332 1467 1548 1591 1956 1998 2322 2934 3182 3996 4401 4644 4773 5868 6031 6364 7009 8802 9546 12062 14018 14319 17604 18093 19092 21027 24124 28036 28638 36186 42054 42957 54279 57276 63081 72372 84108 85914 108558 126162 162837 171828 189243 217116 252324 259333 325674 378486 518666 651348 756972 777999 1037332 1555998 2333997 3111996 4667994 7001991 9335988 14003982 28007964
• Sum of all divisors σ(n): 76778240
• Sum of proper divisors (its aliquot sum) s(n): 48770276
• 28007964 is an abundant number, because the sum of its proper divisors (48770276) is greater than itself. Its abundance is 20762312

Bases of 28007964

• Binary: 1101010110101111000011100₂
• Hexadecimal: 0x1AB5E1C
• Base-36: GOB30

Squares and roots of 28007964

• 28007964 squared (28007964²) is 784446047425296
• 28007964 cubed (28007964³) is 21970736656229983057344
• The square root of 28007964 is 5292.2550958925
• The cube root of 28007964 is 303.6876842139

Scales and comparisons

• 28,007,964 seconds is equal to 46 weeks, 2 days, 3 hours, 59 minutes, 24 seconds.
• To count from 1 to 28,007,964 would take you about seventeen 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 28007964 cubic inches would be around 25.3 feet tall.

Recreational maths with 28007964

• 28007964 backwards is 46970082
• 28007964 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28007964's digits is 36
• More coming soon!