28128007824

Names of 28128007824

• Cardinal: 28128007824 can be written as Twenty-eight billion, one hundred twenty-eight million, seven thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 2.8128007824 × 10¹⁰

Factors of 28128007824

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 80424

Divisors of 28128007824

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 49 56 84 98 112 147 149 168 196 294 298 336 392 447 588 596 784 894 1043 1176 1192 1788 2086 2352 2384 3129 3576 4172 6258 7152 7301 8344 12516 14602 16688 21903 25032 29204 43806 50064 58408 80263 87612 116816 160526 175224 240789 321052 350448 481578 561841 642104 963156 1123682 1284208 1685523 1926312 2247364 3371046 3852624 3932887 4494728 6742092 7865774 8989456 11798661 11959187 13484184 15731548 23597322 23918374 26968368 31463096 35877561 47194644 47836748 62926192 71755122 83714309 94389288 95673496 143510244 167428618 188778576 191346992 251142927 287020488 334857236 502285854 574040976 586000163 669714472 1004571708 1172000326 1339428944 1758000489 2009143416 2344000652 3516000978 4018286832 4688001304 7032001956 9376002608 14064003912 28128007824
• Sum of all divisors σ(n): 85095892800
• Sum of proper divisors (its aliquot sum) s(n): 56967884976
• 28128007824 is an abundant number, because the sum of its proper divisors (56967884976) is greater than itself. Its abundance is 28839877152

Bases of 28128007824

• Binary: 11010001100100011110101011010010000₂
• Hexadecimal: 0x68C8F5690
• Base-36: CX6OTQO

Squares and roots of 28128007824

• 28128007824 squared (28128007824²) is 791184824147005214976
• 28128007824 cubed (28128007824³) is 22254452923837026813013729972224
• The square root of 28128007824 is 167714.0656713085
• The cube root of 28128007824 is 3041.2094039557

Scales and comparisons

• 28,128,007,824 seconds is equal to 894 years, 19 weeks, 6 days, 15 hours, 30 minutes, 24 seconds.
• To count from 1 to 28,128,007,824 would take you about one thousand, seven hundred eighty-eight 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 28128007824 cubic inches would be around 253.4 feet tall.

Recreational maths with 28128007824

• 28128007824 backwards is 42870082182
• 28128007824 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28128007824's digits is 42
• More coming soon!