21386380080

Names of 21386380080

• Cardinal: 21386380080 can be written as Twenty-one billion, three hundred eighty-six million, three hundred eighty thousand and eighty.

Scientific notation

• Scientific notation: 2.138638008 × 10¹⁰

Factors of 21386380080

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 15353

Divisors of 21386380080

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 195 208 240 260 312 390 461 520 624 780 922 1040 1383 1560 1844 2305 2766 3120 3688 4610 5532 5993 6915 7376 9220 11064 11986 13830 14869 17979 18440 22128 23972 27660 29738 29965 35958 36880 44607 47944 55320 59476 59930 71916 74345 89214 89895 95888 110640 118952 119860 143832 148690 178428 179790 193297 223035 237904 239720 287664 297380 356856 359580 386594 446070 479440 579891 594760 713712 719160 773188 892140 966485 1159782 1189520 1438320 1546376 1784280 1932970 2319564 2899455 3092752 3568560 3865940 4639128 5798910 6854609 7731880 9278256 11597820 13709218 15463760 20563827 23195640 27418436 34273045 41127654 46391280 54836872 68546090 82255308 89109917 102819135 109673744 137092180 164510616 178219834 205638270 267329751 274184360 329021232 356439668 411276540 445549585 534659502 548368720 712879336 822553080 891099170 1069319004 1336648755 1425758672 1645106160 1782198340 2138638008 2673297510 3564396680 4277276016 5346595020 7128793360 10693190040 21386380080
• Sum of all divisors σ(n): 71557295040
• Sum of proper divisors (its aliquot sum) s(n): 50170914960
• 21386380080 is an abundant number, because the sum of its proper divisors (50170914960) is greater than itself. Its abundance is 28784534880

Bases of 21386380080

• Binary: 10011111010101110100100001100110000₂
• Hexadecimal: 0x4FABA4330
• Base-36: 9TOWCHC

Squares and roots of 21386380080

• 21386380080 squared (21386380080²) is 457377252926220806400
• 21386380080 cubed (21386380080³) is 9781643771026450363674496512000
• The square root of 21386380080 is 146240.8290457901
• The cube root of 21386380080 is 2775.7419796617

Scales and comparisons

• 21,386,380,080 seconds is equal to 680 years, 1 week, 13 hours, 8 minutes.
• To count from 1 to 21,386,380,080 would take you about one thousand, three hundred sixty 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 21386380080 cubic inches would be around 231.3 feet tall.

Recreational maths with 21386380080

• 21386380080 backwards is 08008368312
• 21386380080 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21386380080's digits is 39
• More coming soon!