28247856

Names of 28247856

• Cardinal: 28247856 can be written as Twenty-eight million, two hundred forty-seven thousand, eight hundred fifty-six.

Scientific notation

• Scientific notation: 2.8247856 × 10⁷

Factors of 28247856

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 277

Divisors of 28247856

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 29 39 42 48 52 56 58 78 84 87 91 104 112 116 156 168 174 182 203 208 223 232 273 312 336 348 364 377 406 446 464 546 609 624 669 696 728 754 812 892 1092 1131 1218 1338 1392 1456 1508 1561 1624 1784 2184 2262 2436 2639 2676 2899 3016 3122 3248 3568 4368 4524 4683 4872 5278 5352 5798 6032 6244 6467 7917 8697 9048 9366 9744 10556 10704 11596 12488 12934 15834 17394 18096 18732 19401 20293 21112 23192 24976 25868 31668 34788 37464 38802 40586 42224 45269 46384 51736 60879 63336 69576 74928 77604 81172 84071 90538 103472 121758 126672 135807 139152 155208 162344 168142 181076 243516 252213 271614 310416 324688 336284 362152 487032 504426 543228 588497 672568 724304 974064 1008852 1086456 1176994 1345136 1765491 2017704 2172912 2353988 3530982 4035408 4707976 7061964 9415952 14123928 28247856
• Sum of all divisors σ(n): 93327360
• Sum of proper divisors (its aliquot sum) s(n): 65079504
• 28247856 is an abundant number, because the sum of its proper divisors (65079504) is greater than itself. Its abundance is 36831648

Bases of 28247856

• Binary: 1101011110000011100110000₂
• Hexadecimal: 0x1AF0730
• Base-36: GTG6O

Squares and roots of 28247856

• 28247856 squared (28247856²) is 797941368596736
• 28247856 cubed (28247856³) is 22540132876563520598016
• The square root of 28247856 is 5314.8712119863
• The cube root of 28247856 is 304.5522625127

Scales and comparisons

• 28,247,856 seconds is equal to 46 weeks, 4 days, 22 hours, 37 minutes, 36 seconds.
• To count from 1 to 28,247,856 would take you about eighteen 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 28247856 cubic inches would be around 25.4 feet tall.

Recreational maths with 28247856

• 28247856 backwards is 65874282
• 28247856 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28247856's digits is 42
• More coming soon!