28474740

Names of 28474740

• Cardinal: 28474740 can be written as Twenty-eight million, four hundred seventy-four thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.847474 × 10⁷

Factors of 28474740

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 48

Divisors of 28474740

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 31 35 36 42 45 54 60 62 63 70 81 84 90 93 105 108 124 126 135 140 155 162 180 186 189 210 217 243 252 270 279 310 315 324 372 378 405 420 434 465 486 540 558 567 620 630 651 729 756 810 837 868 930 945 972 1085 1116 1134 1215 1260 1302 1395 1458 1620 1674 1701 1860 1890 1953 2170 2187 2268 2430 2511 2604 2790 2835 2916 3255 3348 3402 3645 3780 3906 4185 4340 4374 4860 5022 5103 5580 5670 5859 6510 6561 6804 7290 7533 7812 8370 8505 8748 9765 10044 10206 10935 11340 11718 12555 13020 13122 14580 15066 15309 16740 17010 17577 19530 20412 21870 22599 23436 25110 25515 26244 29295 30132 30618 32805 34020 35154 37665 39060 43740 45198 45927 50220 51030 52731 58590 61236 65610 67797 70308 75330 76545 87885 90396 91854 102060 105462 112995 117180 131220 135594 150660 153090 158193 175770 183708 203391 210924 225990 229635 263655 271188 306180 316386 338985 351540 406782 451980 459270 474579 527310 632772 677970 790965 813564 918540 949158 1016955 1054620 1355940 1423737 1581930 1898316 2033910 2372895 2847474 3163860 4067820 4745790 5694948 7118685 9491580 14237370 28474740
• Sum of all divisors σ(n): 105810432
• Sum of proper divisors (its aliquot sum) s(n): 77335692
• 28474740 is an abundant number, because the sum of its proper divisors (77335692) is greater than itself. Its abundance is 48860952

Bases of 28474740

• Binary: 1101100100111110101110100₂
• Hexadecimal: 0x1B27D74
• Base-36: GYB90

Squares and roots of 28474740

• 28474740 squared (28474740²) is 810810818067600
• 28474740 cubed (28474740³) is 23087627233662212424000
• The square root of 28474740 is 5336.1727858081
• The cube root of 28474740 is 305.3654671257

Scales and comparisons

• 28,474,740 seconds is equal to 47 weeks, 13 hours, 39 minutes.
• To count from 1 to 28,474,740 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 28474740 cubic inches would be around 25.4 feet tall.

Recreational maths with 28474740

• 28474740 backwards is 04747482
• 28474740 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28474740's digits is 36
• More coming soon!