20138178816

Names of 20138178816

• Cardinal: 20138178816 can be written as Twenty billion, one hundred thirty-eight million, one hundred seventy-eight thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.0138178816 × 10¹⁰

Factors of 20138178816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 268

Divisors of 20138178816

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 23 24 28 32 36 42 46 48 56 63 64 69 72 84 92 96 112 126 128 138 144 161 168 184 192 207 224 233 252 256 276 288 322 336 368 384 414 448 466 483 504 552 576 644 672 699 736 768 828 896 932 966 1008 1104 1152 1288 1344 1398 1449 1472 1631 1656 1792 1864 1932 2016 2097 2208 2304 2576 2688 2796 2898 2944 3262 3312 3728 3864 4032 4194 4416 4893 5152 5359 5376 5592 5796 5888 6524 6624 7456 7728 8064 8388 8832 9786 10304 10718 11184 11592 13048 13248 14679 14912 15456 16077 16128 16776 17664 19572 20608 21436 22368 23184 26096 26496 29358 29824 30912 32154 33552 37513 39144 41216 42872 44736 46368 48231 52192 52992 54289 58716 59648 61824 64308 67104 75026 78288 85744 89472 92736 96462 104384 108578 112539 117432 123648 128616 134208 150052 156576 162867 171488 178944 185472 192924 208768 217156 225078 234864 257232 268416 300104 313152 325734 337617 342976 370944 380023 385848 417536 434312 450156 469728 488601 514464 536832 600208 626304 651468 675234 685952 760046 771696 868624 900312 939456 977202 1028928 1140069 1200416 1248647 1252608 1302936 1350468 1371904 1520092 1543392 1737248 1800624 1878912 1954404 2057856 2280138 2400832 2497294 2605872 2700936 3040184 3086784 3420207 3474496 3601248 3745941 3757824 3908808 4115712 4560276 4801664 4994588 5211744 5401872 6080368 6173568 6840414 6948992 7202496 7491882 7817616 8740529 9120552 9603328 9989176 10423488 10803744 11237823 12160736 12347136 13680828 13897984 14404992 14983764 15635232 17481058 18241104 19978352 20846976 21607488 22475646 24321472 26221587 27361656 28809984 29967528 31270464 34962116 36482208 39956704 41693952 43214976 44951292 48642944 52443174 54723312 59935056 62540928 69924232 72964416 78664761 79913408 86429952 89902584 97285888 104886348 109446624 119870112 125081856 139848464 145928832 157329522 159826816 179805168 209772696 218893248 239740224 279696928 291857664 314659044 319653632 359610336 419545392 437786496 479480448 559393856 629318088 719220672 839090784 875572992 958960896 1118787712 1258636176 1438441344 1678181568 2237575424 2517272352 2876882688 3356363136 5034544704 6712726272 10069089408 20138178816
• Sum of all divisors σ(n): 69541687488
• Sum of proper divisors (its aliquot sum) s(n): 49403508672
• 20138178816 is an abundant number, because the sum of its proper divisors (49403508672) is greater than itself. Its abundance is 29265329856

Bases of 20138178816

• Binary: 10010110000010101000011100100000000₂
• Hexadecimal: 0x4B0543900
• Base-36: 991R280

Squares and roots of 20138178816

• 20138178816 squared (20138178816²) is 405546246025191161856
• 20138178816 cubed (20138178816³) is 8166962820612828858038926442496
• The square root of 20138178816 is 141909.0512123873
• The cube root of 20138178816 is 2720.6545253005

Scales and comparisons

• 20,138,178,816 seconds is equal to 640 years, 17 weeks, 1 day, 18 hours, 33 minutes, 36 seconds.
• To count from 1 to 20,138,178,816 would take you about one thousand, two hundred eighty 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 20138178816 cubic inches would be around 226.7 feet tall.

Recreational maths with 20138178816

• 20138178816 backwards is 61887183102
• The number of decimal digits it has is: 11
• The sum of 20138178816's digits is 45
• More coming soon!