20688182784

Names of 20688182784

• Cardinal: 20688182784 can be written as Twenty billion, six hundred eighty-eight million, one hundred eighty-two thousand, seven hundred eighty-four.

Scientific notation

• Scientific notation: 2.0688182784 × 10¹⁰

Factors of 20688182784

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 69

Divisors of 20688182784

• Number of divisors d(n): 400
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 23 24 27 32 36 41 46 48 54 64 69 72 81 82 92 96 108 123 128 138 144 162 164 184 192 207 216 246 256 276 288 324 328 368 369 384 414 432 492 512 529 552 576 621 648 656 736 738 768 828 864 943 984 1058 1104 1107 1152 1242 1296 1312 1472 1476 1536 1587 1656 1728 1863 1886 1968 2116 2208 2214 2304 2484 2592 2624 2829 2944 2952 3174 3312 3321 3456 3726 3772 3936 4232 4416 4428 4608 4761 4968 5184 5248 5658 5888 5904 6348 6624 6642 6912 7452 7544 7872 8464 8487 8832 8856 9522 9936 10368 10496 11316 11776 11808 12167 12696 13248 13284 13824 14283 14904 15088 15744 16928 16974 17664 17712 19044 19872 20736 20992 21689 22632 23616 24334 25392 25461 26496 26568 28566 29808 30176 31488 33856 33948 35328 35424 36501 38088 39744 41472 42849 43378 45264 47232 48668 50784 50922 52992 53136 57132 59616 60352 62976 65067 67712 67896 70848 73002 76176 76383 79488 85698 86756 90528 94464 97336 101568 101844 105984 106272 109503 114264 119232 120704 130134 135424 135792 141696 146004 152352 152766 158976 171396 173512 181056 188928 194672 195201 203136 203688 212544 219006 228528 238464 241408 260268 270848 271584 283392 292008 304704 305532 317952 328509 342792 347024 362112 389344 390402 406272 407376 425088 438012 457056 476928 482816 498847 520536 543168 566784 584016 585603 609408 611064 657018 685584 694048 724224 778688 780804 812544 814752 850176 876024 914112 953856 985527 997694 1041072 1086336 1168032 1171206 1218816 1222128 1314036 1371168 1388096 1448448 1496541 1557376 1561608 1629504 1700352 1752048 1756809 1828224 1971054 1995388 2082144 2172672 2336064 2342412 2437632 2444256 2628072 2742336 2776192 2993082 3114752 3123216 3259008 3504096 3513618 3656448 3942108 3990776 4164288 4345344 4489623 4672128 4684824 4888512 5256144 5484672 5552384 5986164 6229504 6246432 6518016 7008192 7027236 7312896 7884216 7981552 8328576 8979246 9344256 9369648 9777024 10512288 10969344 11104768 11972328 12492864 13036032 13468869 14016384 14054472 15768432 15963104 16657152 17958492 18688512 18739296 19554048 21024576 21938688 23944656 24985728 26937738 28032768 28108944 31536864 31926208 33314304 35916984 37478592 39108096 40406607 42049152 47889312 49971456 53875476 56065536 56217888 63073728 63852416 71833968 74957184 80813214 84098304 95778624 99942912 107750952 112435776 126147456 127704832 143667936 149914368 161626428 168196608 191557248 215501904 224871552 252294912 255409664 287335872 299828736 323252856 383114496 431003808 449743104 504589824 574671744 646505712 766228992 862007616 899486208 1149343488 1293011424 1724015232 2298686976 2586022848 3448030464 5172045696 6896060928 10344091392 20688182784
• Sum of all divisors σ(n): 66129829920
• Sum of proper divisors (its aliquot sum) s(n): 45441647136
• 20688182784 is an abundant number, because the sum of its proper divisors (45441647136) is greater than itself. Its abundance is 24753464352

Bases of 20688182784

• Binary: 10011010001000111001001111000000000₂
• Hexadecimal: 0x4D11C9E00
• Base-36: 9I57K00

Squares and roots of 20688182784

• 20688182784 squared (20688182784²) is 428000906904193990656
• 20688182784 cubed (20688182784³) is 8854560993751732854885716066304
• The square root of 20688182784 is 143833.8721720305
• The cube root of 20688182784 is 2745.2007879643

Scales and comparisons

• 20,688,182,784 seconds is equal to 657 years, 42 weeks, 4 days, 13 hours, 26 minutes, 24 seconds.
• To count from 1 to 20,688,182,784 would take you about one thousand, three hundred fifteen 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 20688182784 cubic inches would be around 228.8 feet tall.

Recreational maths with 20688182784

• 20688182784 backwards is 48728188602
• 20688182784 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20688182784's digits is 54
• More coming soon!