28348740

Names of 28348740

• Cardinal: 28348740 can be written as Twenty-eight million, three hundred forty-eight thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.834874 × 10⁷

Factors of 28348740

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 317

Divisors of 28348740

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 149 151 180 210 252 298 302 315 420 447 453 596 604 630 745 755 894 906 1043 1057 1260 1341 1359 1490 1510 1788 1812 2086 2114 2235 2265 2682 2718 2980 3020 3129 3171 4172 4228 4470 4530 5215 5285 5364 5436 6258 6342 6705 6795 8940 9060 9387 9513 10430 10570 12516 12684 13410 13590 15645 15855 18774 19026 20860 21140 22499 26820 27180 31290 31710 37548 38052 44998 46935 47565 62580 63420 67497 89996 93870 95130 112495 134994 157493 187740 190260 202491 224990 269988 314986 337485 404982 449980 472479 629972 674970 787465 809964 944958 1012455 1349940 1417437 1574930 1889916 2024910 2362395 2834874 3149860 4049820 4724790 5669748 7087185 9449580 14174370 28348740
• Sum of all divisors σ(n): 99590400
• Sum of proper divisors (its aliquot sum) s(n): 71241660
• 28348740 is an abundant number, because the sum of its proper divisors (71241660) is greater than itself. Its abundance is 42892920

Bases of 28348740

• Binary: 1101100001001000101000100₂
• Hexadecimal: 0x1B09144
• Base-36: GVM10

Squares and roots of 28348740

• 28348740 squared (28348740²) is 803651059587600
• 28348740 cubed (28348740³) is 22782494938973379624000
• The square root of 28348740 is 5324.3534818793
• The cube root of 28348740 is 304.9143896603

Scales and comparisons

• 28,348,740 seconds is equal to 46 weeks, 6 days, 2 hours, 39 minutes.
• To count from 1 to 28,348,740 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 28348740 cubic inches would be around 25.4 feet tall.

Recreational maths with 28348740

• 28348740 backwards is 04784382
• 28348740 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28348740's digits is 36
• More coming soon!