28211456

Names of 28211456

• Cardinal: 28211456 can be written as Twenty-eight million, two hundred eleven thousand, four hundred fifty-six.

Scientific notation

• Scientific notation: 2.8211456 × 10⁷

Factors of 28211456

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 195

Divisors of 28211456

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 49 52 56 64 91 98 104 112 128 173 182 196 208 224 256 346 364 392 416 448 637 692 728 784 832 896 1211 1274 1384 1456 1568 1664 1792 2249 2422 2548 2768 2912 3136 3328 4498 4844 5096 5536 5824 6272 8477 8996 9688 10192 11072 11648 12544 15743 16954 17992 19376 20384 22144 23296 31486 33908 35984 38752 40768 44288 62972 67816 71968 77504 81536 110201 125944 135632 143936 155008 163072 220402 251888 271264 287872 310016 440804 503776 542528 575744 881608 1007552 1085056 1763216 2015104 2170112 3526432 4030208 7052864 14105728 28211456
• Sum of all divisors σ(n): 70953372
• Sum of proper divisors (its aliquot sum) s(n): 42741916
• 28211456 is an abundant number, because the sum of its proper divisors (42741916) is greater than itself. Its abundance is 14530460

Bases of 28211456

• Binary: 1101011100111100100000000₂
• Hexadecimal: 0x1AE7900
• Base-36: GSO3K

Squares and roots of 28211456

• 28211456 squared (28211456²) is 795886249639936
• 28211456 cubed (28211456³) is 22453109912722070306816
• The square root of 28211456 is 5311.4457542179
• The cube root of 28211456 is 304.4213916079

Scales and comparisons

• 28,211,456 seconds is equal to 46 weeks, 4 days, 12 hours, 30 minutes, 56 seconds.
• To count from 1 to 28,211,456 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 28211456 cubic inches would be around 25.4 feet tall.

Recreational maths with 28211456

• 28211456 backwards is 65411282
• The number of decimal digits it has is: 8
• The sum of 28211456's digits is 29
• More coming soon!