28137648

Names of 28137648

• Cardinal: 28137648 can be written as Twenty-eight million, one hundred thirty-seven thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 2.8137648 × 10⁷

Factors of 28137648

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 377

Divisors of 28137648

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 23 24 28 33 42 44 46 48 56 66 69 77 84 88 92 112 132 138 154 161 168 176 184 231 253 264 276 308 322 331 336 368 462 483 506 528 552 616 644 662 759 924 966 993 1012 1104 1232 1288 1324 1518 1771 1848 1932 1986 2024 2317 2576 2648 3036 3542 3641 3696 3864 3972 4048 4634 5296 5313 6072 6951 7084 7282 7613 7728 7944 9268 10626 10923 12144 13902 14168 14564 15226 15888 18536 21252 21846 22839 25487 27804 28336 29128 30452 37072 42504 43692 45678 50974 53291 55608 58256 60904 76461 83743 85008 87384 91356 101948 106582 111216 121808 152922 159873 167486 174768 182712 203896 213164 251229 305844 319746 334972 365424 407792 426328 502458 586201 611688 639492 669944 852656 1004916 1172402 1223376 1278984 1339888 1758603 2009832 2344804 2557968 3517206 4019664 4689608 7034412 9379216 14068824 28137648
• Sum of all divisors σ(n): 94851072
• Sum of proper divisors (its aliquot sum) s(n): 66713424
• 28137648 is an abundant number, because the sum of its proper divisors (66713424) is greater than itself. Its abundance is 38575776

Bases of 28137648

• Binary: 1101011010101100010110000₂
• Hexadecimal: 0x1AD58B0
• Base-36: GR35C

Squares and roots of 28137648

• 28137648 squared (28137648²) is 791727234971904
• 28137648 cubed (28137648³) is 22277342249652724641792
• The square root of 28137648 is 5304.4931897401
• The cube root of 28137648 is 304.1556797265

Scales and comparisons

• 28,137,648 seconds is equal to 46 weeks, 3 days, 16 hours, 48 seconds.
• To count from 1 to 28,137,648 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 28137648 cubic inches would be around 25.3 feet tall.

Recreational maths with 28137648

• 28137648 backwards is 84673182
• The number of decimal digits it has is: 8
• The sum of 28137648's digits is 39
• More coming soon!