28718880

Names of 28718880

• Cardinal: 28718880 can be written as Twenty-eight million, seven hundred eighteen thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.871888 × 10⁷

Factors of 28718880

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 143

Divisors of 28718880

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 32 38 40 47 48 57 60 67 76 80 94 95 96 114 120 134 141 152 160 188 190 201 228 235 240 268 282 285 304 335 376 380 402 456 470 480 536 564 570 608 670 705 752 760 804 893 912 940 1005 1072 1128 1140 1273 1340 1410 1504 1520 1608 1786 1824 1880 2010 2144 2256 2280 2546 2679 2680 2820 3040 3149 3216 3572 3760 3819 4020 4465 4512 4560 5092 5358 5360 5640 6298 6365 6432 7144 7520 7638 8040 8930 9120 9447 10184 10716 10720 11280 12596 12730 13395 14288 15276 15745 16080 17860 18894 19095 20368 21432 22560 25192 25460 26790 28576 30552 31490 32160 35720 37788 38190 40736 42864 47235 50384 50920 53580 59831 61104 62980 71440 75576 76380 85728 94470 100768 101840 107160 119662 122208 125960 142880 151152 152760 179493 188940 203680 214320 239324 251920 299155 302304 305520 358986 377880 428640 478648 503840 598310 611040 717972 755760 897465 957296 1196620 1435944 1511520 1794930 1914592 2393240 2871888 3589860 4786480 5743776 7179720 9572960 14359440 28718880
• Sum of all divisors σ(n): 98703360
• Sum of proper divisors (its aliquot sum) s(n): 69984480
• 28718880 is an abundant number, because the sum of its proper divisors (69984480) is greater than itself. Its abundance is 41265600

Bases of 28718880

• Binary: 1101101100011011100100000₂
• Hexadecimal: 0x1B63720
• Base-36: H3JMO

Squares and roots of 28718880

• 28718880 squared (28718880²) is 824774068454400
• 28718880 cubed (28718880³) is 23686587499053699072000
• The square root of 28718880 is 5358.9999066991
• The cube root of 28718880 is 306.2357105647

Scales and comparisons

• 28,718,880 seconds is equal to 47 weeks, 3 days, 9 hours, 28 minutes.
• To count from 1 to 28,718,880 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 28718880 cubic inches would be around 25.5 feet tall.

Recreational maths with 28718880

• 28718880 backwards is 08881782
• The number of decimal digits it has is: 8
• The sum of 28718880's digits is 42
• More coming soon!