28168728960

Names of 28168728960

• Cardinal: 28168728960 can be written as Twenty-eight billion, one hundred sixty-eight million, seven hundred twenty-eight thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 2.816872896 × 10¹⁰

Factors of 28168728960

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 341244

Divisors of 28168728960

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 43 48 60 64 80 86 96 120 128 129 160 172 192 215 240 258 320 344 384 430 480 516 640 645 688 860 960 1032 1290 1376 1720 1920 2064 2580 2752 3440 4128 5160 5504 6880 8256 10320 13760 16512 20640 27520 41280 82560 341191 682382 1023573 1364764 1705955 2047146 2729528 3411910 4094292 5117865 5459056 6823820 8188584 10235730 10918112 13647640 14671213 16377168 20471460 21836224 27295280 29342426 32754336 40942920 43672448 44013639 54590560 58684852 65508672 73356065 81885840 88027278 109181120 117369704 131017344 146712130 163771680 176054556 218362240 220068195 234739408 293424260 327543360 352109112 440136390 469478816 586848520 655086720 704218224 880272780 938957632 1173697040 1408436448 1760545560 1877915264 2347394080 2816872896 3521091120 4694788160 5633745792 7042182240 9389576320 14084364480 28168728960
• Sum of all divisors σ(n): 91876181760
• Sum of proper divisors (its aliquot sum) s(n): 63707452800
• 28168728960 is an abundant number, because the sum of its proper divisors (63707452800) is greater than itself. Its abundance is 35538723840

Bases of 28168728960

• Binary: 11010001110111111001011000110000000₂
• Hexadecimal: 0x68EFCB180
• Base-36: CXUXMDC

Squares and roots of 28168728960

• 28168728960 squared (28168728960²) is 793477291221942681600
• 28168728960 cubed (28168728960³) is 22351246752345890602645979136000
• The square root of 28168728960 is 167835.4222445309
• The cube root of 28168728960 is 3042.6762904891

Scales and comparisons

• 28,168,728,960 seconds is equal to 895 years, 35 weeks, 1 day, 22 hours, 56 minutes.
• To count from 1 to 28,168,728,960 would take you about one thousand, seven hundred ninety-one 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 28168728960 cubic inches would be around 253.6 feet tall.

Recreational maths with 28168728960

• 28168728960 backwards is 06982786182
• The number of decimal digits it has is: 11
• The sum of 28168728960's digits is 57
• More coming soon!