28738800

Names of 28738800

• Cardinal: 28738800 can be written as Twenty-eight million, seven hundred thirty-eight thousand, eight hundred.

Scientific notation

• Scientific notation: 2.87388 × 10⁷

Factors of 28738800

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 897

Divisors of 28738800

• Number of divisors d(n): 150
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 36 40 45 48 50 54 60 72 75 80 81 90 100 108 120 135 144 150 162 180 200 216 225 240 270 300 324 360 400 405 432 450 540 600 648 675 720 810 887 900 1080 1200 1296 1350 1620 1774 1800 2025 2160 2661 2700 3240 3548 3600 4050 4435 5322 5400 6480 7096 7983 8100 8870 10644 10800 13305 14192 15966 16200 17740 21288 22175 23949 26610 31932 32400 35480 39915 42576 44350 47898 53220 63864 66525 70960 71847 79830 88700 95796 106440 119745 127728 133050 143694 159660 177400 191592 199575 212880 239490 266100 287388 319320 354800 359235 383184 399150 478980 532200 574776 598725 638640 718470 798300 957960 1064400 1149552 1197450 1436940 1596600 1796175 1915920 2394900 2873880 3193200 3592350 4789800 5747760 7184700 9579600 14369400 28738800
• Sum of all divisors σ(n): 103257528
• Sum of proper divisors (its aliquot sum) s(n): 74518728
• 28738800 is an abundant number, because the sum of its proper divisors (74518728) is greater than itself. Its abundance is 45779928

Bases of 28738800

• Binary: 1101101101000010011110000₂
• Hexadecimal: 0x1B684F0
• Base-36: H3Z00

Squares and roots of 28738800

• 28738800 squared (28738800²) is 825918625440000
• 28738800 cubed (28738800³) is 23735910192795072000000
• The square root of 28738800 is 5360.8581402607
• The cube root of 28738800 is 306.3064979757

Scales and comparisons

• 28,738,800 seconds is equal to 47 weeks, 3 days, 15 hours.
• To count from 1 to 28,738,800 would take you about nineteen 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 28738800 cubic inches would be around 25.5 feet tall.

Recreational maths with 28738800

• 28738800 backwards is 00883782
• 28738800 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28738800's digits is 36
• More coming soon!