28495740

Names of 28495740

• Cardinal: 28495740 can be written as Twenty-eight million, four hundred ninety-five thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.849574 × 10⁷

Factors of 28495740

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 354

Divisors of 28495740

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 13 14 15 17 20 21 26 28 30 34 35 39 42 51 52 60 65 68 70 78 84 85 91 102 105 119 130 140 156 170 182 195 204 210 221 238 255 260 273 307 340 357 364 390 420 442 455 476 510 546 595 614 663 714 780 884 910 921 1020 1092 1105 1190 1228 1326 1365 1428 1535 1547 1785 1820 1842 2149 2210 2380 2652 2730 3070 3094 3315 3570 3684 3991 4298 4420 4605 4641 5219 5460 6140 6188 6447 6630 7140 7735 7982 8596 9210 9282 10438 10745 11973 12894 13260 15470 15657 15964 18420 18564 19955 20876 21490 23205 23946 25788 26095 27937 30940 31314 32235 36533 39910 42980 46410 47892 52190 55874 59865 62628 64470 67847 73066 78285 79820 83811 92820 104380 109599 111748 119730 128940 135694 139685 146132 156570 167622 182665 203541 219198 239460 271388 279370 313140 335244 339235 365330 407082 419055 438396 474929 547995 558740 678470 730660 814164 838110 949858 1017705 1095990 1356940 1424787 1676220 1899716 2035410 2191980 2374645 2849574 4070820 4749290 5699148 7123935 9498580 14247870 28495740
• Sum of all divisors σ(n): 104315904
• Sum of proper divisors (its aliquot sum) s(n): 75820164
• 28495740 is an abundant number, because the sum of its proper divisors (75820164) is greater than itself. Its abundance is 47324424

Bases of 28495740

• Binary: 1101100101100111101111100₂
• Hexadecimal: 0x1B2CF7C
• Base-36: GYRGC

Squares and roots of 28495740

• 28495740 squared (28495740²) is 812007198147600
• 28495740 cubed (28495740³) is 23138745996542491224000
• The square root of 28495740 is 5338.1401255493
• The cube root of 28495740 is 305.4405172579

Scales and comparisons

• 28,495,740 seconds is equal to 47 weeks, 19 hours, 29 minutes.
• To count from 1 to 28,495,740 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 28495740 cubic inches would be around 25.5 feet tall.

Recreational maths with 28495740

• 28495740 backwards is 04759482
• 28495740 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28495740's digits is 39
• More coming soon!