28998216

Names of 28998216

• Cardinal: 28998216 can be written as Twenty-eight million, nine hundred ninety-eight thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 2.8998216 × 10⁷

Factors of 28998216

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 490

Divisors of 28998216

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 18 23 24 26 27 36 39 46 52 54 69 72 78 92 104 108 117 138 156 184 207 216 234 276 299 312 351 414 449 468 552 598 621 702 828 897 898 936 1196 1242 1347 1404 1656 1794 1796 2392 2484 2691 2694 2808 3588 3592 4041 4968 5382 5388 5837 7176 8073 8082 10327 10764 10776 11674 12123 16146 16164 17511 20654 21528 23348 24246 30981 32292 32328 35022 41308 46696 48492 52533 61962 64584 70044 82616 92943 96984 105066 123924 134251 140088 157599 185886 210132 247848 268502 278829 315198 371772 402753 420264 537004 557658 630396 743544 805506 1074008 1115316 1208259 1260792 1611012 2230632 2416518 3222024 3624777 4833036 7249554 9666072 14499108 28998216
• Sum of all divisors σ(n): 90720000
• Sum of proper divisors (its aliquot sum) s(n): 61721784
• 28998216 is an abundant number, because the sum of its proper divisors (61721784) is greater than itself. Its abundance is 32723568

Bases of 28998216

• Binary: 1101110100111101001001000₂
• Hexadecimal: 0x1BA7A48
• Base-36: H9J60

Squares and roots of 28998216

• 28998216 squared (28998216²) is 840896531182656
• 28998216 cubed (28998216³) is 24384499244885394141696
• The square root of 28998216 is 5384.9991643453
• The cube root of 28998216 is 307.2253824243

Scales and comparisons

• 28,998,216 seconds is equal to 47 weeks, 6 days, 15 hours, 3 minutes, 36 seconds.
• To count from 1 to 28,998,216 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 28998216 cubic inches would be around 25.6 feet tall.

Recreational maths with 28998216

• 28998216 backwards is 61289982
• The number of decimal digits it has is: 8
• The sum of 28998216's digits is 45
• More coming soon!