28108721080

Names of 28108721080

• Cardinal: 28108721080 can be written as Twenty-eight billion, one hundred eight million, seven hundred twenty-one thousand and eighty.

Scientific notation

• Scientific notation: 2.810872108 × 10¹⁰

Factors of 28108721080

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 767

Divisors of 28108721080

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 11 20 22 40 44 55 71 88 110 121 142 157 220 242 284 314 355 440 484 521 568 605 628 710 781 785 968 1042 1210 1256 1420 1562 1570 1727 2084 2420 2605 2840 3124 3140 3454 3905 4168 4840 5210 5731 6248 6280 6908 7810 8591 8635 10420 11147 11462 13816 15620 17182 17270 18997 20840 22294 22924 28655 31240 34364 34540 36991 37994 42955 44588 45848 55735 57310 63041 68728 69080 73982 75988 81797 85910 89176 94985 111470 114620 122617 126082 147964 151976 163594 171820 184955 189970 222940 229240 245234 252164 295928 315205 327188 343640 369910 379940 406901 408985 445880 490468 504328 613085 630410 654376 739820 759880 813802 817970 899767 980936 1226170 1260820 1348787 1479640 1627604 1635940 1799534 2034505 2452340 2521640 2697574 3255208 3271880 3599068 4069010 4475911 4498835 4904680 5395148 5807587 6743935 7198136 8138020 8951822 8997670 9897437 10790296 11615174 13487870 16276040 17903644 17995340 19794874 22379555 23230348 26975740 29037935 35807288 35990680 39589748 44759110 46460696 49487185 53951480 58075870 63883457 79179496 89518220 98974370 116151740 127766914 179036440 197948740 232303480 255533828 319417285 395897480 511067656 638834570 702718027 1277669140 1405436054 2555338280 2810872108 3513590135 5621744216 7027180270 14054360540 28108721080
• Sum of all divisors σ(n): 71081115840
• Sum of proper divisors (its aliquot sum) s(n): 42972394760
• 28108721080 is an abundant number, because the sum of its proper divisors (42972394760) is greater than itself. Its abundance is 14863673680

Bases of 28108721080

• Binary: 11010001011011010010000101110111000₂
• Hexadecimal: 0x68B690BB8
• Base-36: CWV7FZS

Squares and roots of 28108721080

• 28108721080 squared (28108721080²) is 790100200753236366400
• 28108721080 cubed (28108721080³) is 22208706168224726930450283712000
• The square root of 28108721080 is 167656.5569251617
• The cube root of 28108721080 is 3040.5141486685

Scales and comparisons

• 28,108,721,080 seconds is equal to 893 years, 40 weeks, 10 hours, 4 minutes, 40 seconds.
• To count from 1 to 28,108,721,080 would take you about one thousand, seven hundred eighty-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 28108721080 cubic inches would be around 253.4 feet tall.

Recreational maths with 28108721080

• 28108721080 backwards is 08012780182
• The number of decimal digits it has is: 11
• The sum of 28108721080's digits is 37
• More coming soon!