28428628740

Names of 28428628740

• Cardinal: 28428628740 can be written as Twenty-eight billion, four hundred twenty-eight million, six hundred twenty-eight thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.842862874 × 10¹⁰

Factors of 28428628740

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 120

Divisors of 28428628740

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 30 31 60 62 79 93 124 155 158 186 237 310 316 372 395 465 474 620 790 930 948 961 1185 1580 1860 1922 2370 2449 2883 3844 4740 4805 4898 5766 6241 7347 9610 9796 11532 12245 12482 14415 14694 18723 19220 24490 24964 28830 29388 31205 36735 37446 48980 57660 62410 73470 74892 75919 93615 124820 146940 151838 187230 193471 227757 303676 374460 379595 386942 455514 493039 580413 759190 773884 911028 967355 986078 1138785 1160826 1479117 1518380 1934710 1972156 2277570 2321652 2465195 2902065 2958234 3869420 4555140 4930390 5804130 5916468 5997601 7395585 9860780 11608260 11995202 14791170 15284209 17992803 23990404 29582340 29988005 30568418 35985606 45852627 59976010 61136836 71971212 76421045 89964015 91705254 119952020 152842090 179928030 183410508 229263135 305684180 359856060 458526270 473810479 917052540 947620958 1421431437 1895241916 2369052395 2842862874 4738104790 5685725748 7107157185 9476209580 14214314370 28428628740
• Sum of all divisors σ(n): 83305232640
• Sum of proper divisors (its aliquot sum) s(n): 54876603900
• 28428628740 is an abundant number, because the sum of its proper divisors (54876603900) is greater than itself. Its abundance is 26447975160

Bases of 28428628740

• Binary: 11010011110011110100111001100000100₂
• Hexadecimal: 0x69E7A7304
• Base-36: D25O6BO

Squares and roots of 28428628740

• 28428628740 squared (28428628740²) is 808186932036753987600
• 28428628740 cubed (28428628740³) is 22975646243392491148194963624000
• The square root of 28428628740 is 168607.9142270613
• The cube root of 28428628740 is 3052.0054441425

Scales and comparisons

• 28,428,628,740 seconds is equal to 903 years, 49 weeks, 1 hour, 19 minutes.
• To count from 1 to 28,428,628,740 would take you about one thousand, eight hundred seven 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 28428628740 cubic inches would be around 254.3 feet tall.

Recreational maths with 28428628740

• 28428628740 backwards is 04782682482
• The number of decimal digits it has is: 11
• The sum of 28428628740's digits is 51
• More coming soon!