2138918394816

Names of 2138918394816

• Cardinal: 2138918394816 can be written as Two trillion, one hundred thirty-eight billion, nine hundred eighteen million, three hundred ninety-four thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.138918394816 × 10¹²

Factors of 2138918394816

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 19647631

Divisors of 2138918394816

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 81 84 96 108 112 126 144 162 168 189 192 216 224 243 252 288 324 336 378 432 448 486 504 567 576 648 672 756 864 972 1008 1134 1296 1344 1512 1701 1728 1944 2016 2268 2592 3024 3402 3888 4032 4536 5184 6048 6804 7776 9072 12096 13608 15552 18144 27216 36288 54432 108864 19647619 39295238 58942857 78590476 117885714 137533333 157180952 176828571 235771428 275066666 314361904 353657142 412599999 471542856 530485713 550133332 628723808 707314284 825199998 943085712 1060971426 1100266664 1237799997 1257447616 1414628568 1591457139 1650399996 1886171424 2121942852 2200533328 2475599994 2829257136 3182914278 3300799992 3713399991 3772342848 4243885704 4401066656 4774371417 4951199988 5658514272 6365828556 6601599984 7426799982 8487771408 8802133312 9548742834 9902399976 11140199973 11317028544 12731657112 13203199968 14853599964 16975542816 19097485668 19804799952 22280399946 25463314224 26406399936 29707199928 33420599919 33951085632 38194971336 39609599904 44560799892 50926628448 59414399856 66841199838 76389942672 79219199808 89121599784 101853256896 118828799712 133682399676 152779885344 178243199568 237657599424 267364799352 305559770688 356486399136 534729598704 712972798272 1069459197408 2138918394816
• Sum of all divisors σ(n): 7266161418880
• Sum of proper divisors (its aliquot sum) s(n): 5127243024064
• 2138918394816 is an abundant number, because the sum of its proper divisors (5127243024064) is greater than itself. Its abundance is 2988324629248

Bases of 2138918394816

• Binary: 11111001000000001011110001001101111000000₂
• Hexadecimal: 0x1F201789BC0
• Base-36: RALSSC00

Squares and roots of 2138918394816

• 2138918394816 squared (2138918394816²) is 4574971899682254055673856
• 2138918394816 cubed (2138918394816³) is 9785491551996673025202629972737130496
• The square root of 2138918394816 is 1462504.1520679523
• The cube root of 2138918394816 is 12884.4160003973

Scales and comparisons

• 2,138,918,394,816 seconds is equal to 68,010 years, 51 weeks, 2 days, 22 hours, 33 minutes, 36 seconds.
• To count from 1 to 2,138,918,394,816 would take you about one hundred seventy thousand and twenty-seven 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 2138918394816 cubic inches would be around 1073.7 feet tall.

Recreational maths with 2138918394816

• 2138918394816 backwards is 6184938198312
• 2138918394816 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 2138918394816's digits is 63
• More coming soon!