20809307904

Names of 20809307904

• Cardinal: 20809307904 can be written as Twenty billion, eight hundred nine million, three hundred seven thousand, nine hundred four.

Scientific notation

• Scientific notation: 2.0809307904 × 10¹⁰

Factors of 20809307904

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 7557

Divisors of 20809307904

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 32 33 42 44 47 48 56 64 66 77 84 88 94 96 112 128 132 141 154 168 176 188 192 224 231 256 264 282 308 329 336 352 376 384 448 462 517 528 564 616 658 672 704 752 768 896 924 987 1034 1056 1128 1232 1316 1344 1408 1504 1551 1792 1848 1974 2068 2112 2256 2464 2632 2688 2816 3008 3102 3619 3696 3948 4136 4224 4512 4928 5264 5376 6016 6204 7238 7392 7487 7896 8272 8448 9024 9856 10528 10857 12032 12408 14476 14784 14974 15792 16544 18048 19712 21056 21714 22461 24816 28952 29568 29948 31584 33088 36096 42112 43428 44922 49632 52409 57904 59136 59896 63168 66176 82357 84224 86856 89844 99264 104818 115808 119792 126336 132352 157227 164714 173712 179688 198528 209636 231616 239584 247071 252672 314454 329428 347424 351889 359376 397056 419272 463232 479168 494142 576499 628908 658856 694848 703778 718752 838544 926464 958336 988284 1055667 1152998 1257816 1317712 1389696 1407556 1437504 1677088 1729497 1916672 1976568 2111334 2305996 2463223 2515632 2635424 2779392 2815112 2875008 3354176 3458994 3870779 3953136 4222668 4611992 4926446 5031264 5270848 5630224 5750016 6708352 6917988 7389669 7741558 7906272 8445336 9223984 9852892 10062528 10541696 11260448 11612337 13416704 13835976 14779338 15483116 15812544 16890672 18447968 19705784 20125056 21083392 22520896 23224674 27095453 27671952 29558676 30966232 31625088 33781344 36895936 39411568 40250112 45041792 46449348 54190906 55343904 59117352 61932464 63250176 67562688 73791872 78823136 81286359 90083584 92898696 108381812 110687808 118234704 123864928 135125376 147583744 157646272 162572718 185797392 216763624 221375616 236469408 247729856 270250752 315292544 325145436 371594784 433527248 442751232 472938816 495459712 630585088 650290872 743189568 867054496 945877632 990919424 1300581744 1486379136 1734108992 1891755264 2601163488 2972758272 3468217984 5202326976 6936435968 10404653952 20809307904
• Sum of all divisors σ(n): 70527614976
• Sum of proper divisors (its aliquot sum) s(n): 49718307072
• 20809307904 is an abundant number, because the sum of its proper divisors (49718307072) is greater than itself. Its abundance is 28908999168

Bases of 20809307904

• Binary: 10011011000010101001101011100000000₂
• Hexadecimal: 0x4D854D700
• Base-36: 9K5BOQO

Squares and roots of 20809307904

• 20809307904 squared (20809307904²) is 433027295443476873216
• 20809307904 cubed (20809307904³) is 9010998321719686483054914699264
• The square root of 20809307904 is 144254.3167603659
• The cube root of 20809307904 is 2750.5478976199

Scales and comparisons

• 20,809,307,904 seconds is equal to 661 years, 34 weeks, 6 days, 11 hours, 18 minutes, 24 seconds.
• To count from 1 to 20,809,307,904 would take you about one thousand, three hundred twenty-three 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 20809307904 cubic inches would be around 229.2 feet tall.

Recreational maths with 20809307904

• 20809307904 backwards is 40970390802
• 20809307904 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20809307904's digits is 42
• More coming soon!