28585872720

Names of 28585872720

• Cardinal: 28585872720 can be written as Twenty-eight billion, five hundred eighty-five million, eight hundred seventy-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.858587272 × 10¹⁰

Factors of 28585872720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 6311

Divisors of 28585872720

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 6301 12602 18903 25204 31505 37806 50408 56709 63010 75612 94515 100816 113418 126020 151224 189030 226836 252040 283545 302448 378060 453672 504080 567090 756120 907344 1134180 1512240 2268360 4536720 39702601 79405202 119107803 158810404 198513005 238215606 317620808 357323409 397026010 476431212 595539015 635241616 714646818 794052020 952862424 1191078030 1429293636 1588104040 1786617045 1905724848 2382156060 2858587272 3176208080 3573234090 4764312120 5717174544 7146468180 9528624240 14292936360 28585872720
• Sum of all divisors σ(n): 96016127454
• Sum of proper divisors (its aliquot sum) s(n): 67430254734
• 28585872720 is an abundant number, because the sum of its proper divisors (67430254734) is greater than itself. Its abundance is 38844382014

Bases of 28585872720

• Binary: 11010100111110110011100110101010000₂
• Hexadecimal: 0x6A7D9CD50
• Base-36: D4RAGK0

Squares and roots of 28585872720

• 28585872720 squared (28585872720²) is 817152119164040198400
• 28585872720 cubed (28585872720³) is 23359006471301525912425947648000
• The square root of 28585872720 is 169073.5719147139
• The cube root of 28585872720 is 3057.6221691441

Scales and comparisons

• 28,585,872,720 seconds is equal to 908 years, 49 weeks, 12 minutes.
• To count from 1 to 28,585,872,720 would take you about one thousand, eight hundred seventeen years!

  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 28585872720 cubic inches would be around 254.8 feet tall.

Recreational maths with 28585872720

• 28585872720 backwards is 02727858582
• The number of decimal digits it has is: 11
• The sum of 28585872720's digits is 54
• More coming soon!