20420918784

Names of 20420918784

• Cardinal: 20420918784 can be written as Twenty billion, four hundred twenty million, nine hundred eighteen thousand, seven hundred eighty-four.

Scientific notation

• Scientific notation: 2.0420918784 × 10¹⁰

Factors of 20420918784

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 14778

Divisors of 20420918784

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 43 48 56 63 64 72 84 86 96 112 126 128 129 144 168 172 192 224 252 256 258 288 301 336 344 384 387 448 504 512 516 576 602 672 688 768 774 896 903 1008 1032 1152 1204 1344 1376 1536 1548 1792 1806 2016 2064 2304 2408 2688 2709 2752 3096 3584 3612 4032 4128 4608 4816 5376 5418 5504 6192 7224 8064 8256 9632 10752 10836 11008 12384 14448 14723 16128 16512 19264 21672 22016 24768 28896 29446 32256 33024 38528 43344 44169 49536 57792 58892 66048 77056 86688 88338 99072 103061 115584 117784 132507 154112 173376 176676 198144 206122 231168 235568 265014 309183 346752 353352 412244 462336 471136 530028 618366 633089 693504 706704 824488 927549 942272 1060056 1236732 1266178 1387008 1413408 1648976 1855098 1884544 1899267 2120112 2473464 2532356 2826816 3297952 3710196 3769088 3798534 4240224 4431623 4946928 5064712 5653632 5697801 6595904 7420392 7538176 7597068 8480448 8863246 9893856 10129424 11307264 11395602 13191808 13294869 14840784 15194136 16960896 17726492 19787712 20258848 22614528 22791204 26383616 26589738 29681568 30388272 33921792 35452984 39575424 39884607 40517696 45582408 52767232 53179476 59363136 60776544 67843584 70905968 79150848 79769214 81035392 91164816 106358952 118726272 121553088 141811936 158301696 159538428 162070784 182329632 212717904 237452544 243106176 283623872 319076856 324141568 364659264 425435808 474905088 486212352 567247744 638153712 729318528 850871616 972424704 1134495488 1276307424 1458637056 1701743232 2268990976 2552614848 2917274112 3403486464 5105229696 6806972928 10210459392 20420918784
• Sum of all divisors σ(n): 68926695552
• Sum of proper divisors (its aliquot sum) s(n): 48505776768
• 20420918784 is an abundant number, because the sum of its proper divisors (48505776768) is greater than itself. Its abundance is 28084857984

Bases of 20420918784

• Binary: 10011000001001011100111111000000000₂
• Hexadecimal: 0x4C12E7E00
• Base-36: 9DQ35S0

Squares and roots of 20420918784

• 20420918784 squared (20420918784²) is 417013923982724038656
• 20420918784 cubed (20420918784³) is 8515807473448357412478652514304
• The square root of 20420918784 is 142901.7801988485
• The cube root of 20420918784 is 2733.3280573101

Scales and comparisons

• 20,420,918,784 seconds is equal to 649 years, 16 weeks, 5 days, 5 hours, 26 minutes, 24 seconds.
• To count from 1 to 20,420,918,784 would take you about one thousand, two hundred ninety-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 20420918784 cubic inches would be around 227.8 feet tall.

Recreational maths with 20420918784

• 20420918784 backwards is 48781902402
• The number of decimal digits it has is: 11
• The sum of 20420918784's digits is 45
• More coming soon!