28459728

Names of 28459728

• Cardinal: 28459728 can be written as Twenty-eight million, four hundred fifty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.8459728 × 10⁷

Factors of 28459728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 182

Divisors of 28459728

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 44 48 53 54 66 72 88 99 106 108 113 132 144 159 176 198 212 216 226 264 297 318 339 396 424 432 452 477 528 583 594 636 678 792 848 904 954 1017 1166 1188 1243 1272 1356 1431 1584 1749 1808 1908 2034 2332 2376 2486 2544 2712 2862 3051 3498 3729 3816 4068 4664 4752 4972 5247 5424 5724 5989 6102 6996 7458 7632 8136 9328 9944 10494 11187 11448 11978 12204 13992 14916 15741 16272 17967 19888 20988 22374 22896 23956 24408 27984 29832 31482 33561 35934 41976 44748 47912 48816 53901 59664 62964 65879 67122 71868 83952 89496 95824 107802 125928 131758 134244 143736 161703 178992 197637 215604 251856 263516 268488 287472 323406 395274 431208 527032 536976 592911 646812 790548 862416 1054064 1185822 1293624 1581096 1778733 2371644 2587248 3162192 3557466 4743288 7114932 9486576 14229864 28459728
• Sum of all divisors σ(n): 91601280
• Sum of proper divisors (its aliquot sum) s(n): 63141552
• 28459728 is an abundant number, because the sum of its proper divisors (63141552) is greater than itself. Its abundance is 34681824

Bases of 28459728

• Binary: 1101100100100001011010000₂
• Hexadecimal: 0x1B242D0
• Base-36: GXZO0

Squares and roots of 28459728

• 28459728 squared (28459728²) is 809956117833984
• 28459728 cubed (28459728³) is 23051130805491133796352
• The square root of 28459728 is 5334.7659742485
• The cube root of 28459728 is 305.3117943825

Scales and comparisons

• 28,459,728 seconds is equal to 47 weeks, 9 hours, 28 minutes, 48 seconds.
• To count from 1 to 28,459,728 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 28459728 cubic inches would be around 25.4 feet tall.

Recreational maths with 28459728

• 28459728 backwards is 82795482
• The number of decimal digits it has is: 8
• The sum of 28459728's digits is 45
• More coming soon!