18378990257012352

Names of 18378990257012352

• Cardinal: 18378990257012352 can be written as Eighteen quadrillion, three hundred seventy-eight trillion, nine hundred ninety billion, two hundred fifty-seven million, twelve thousand, three hundred fifty-two.

Scientific notation

• Scientific notation: 1.8378990257012352 × 10¹⁶

Factors of 18378990257012352

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 131851112397

Divisors of 18378990257012352

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 64 66 72 88 96 99 121 128 132 144 176 192 198 242 264 288 352 363 384 396 484 528 576 704 726 792 968 1056 1089 1152 1408 1452 1584 1936 2112 2178 2904 3168 3872 4224 4356 5808 6336 7744 8712 11616 12672 15488 17424 23232 34848 46464 69696 139392 131851112381 263702224762 395553337143 527404449524 791106674286 1054808899048 1186660011429 1450362236191 1582213348572 2109617798096 2373320022858 2900724472382 3164426697144 4219235596192 4351086708573 4746640045716 5801448944764 6328853394288 8438471192384 8702173417146 9493280091432 11602897889528 12657706788576 13053260125719 15953984598101 16876942384768 17404346834292 18986560182864 23205795779056 25315413577152 26106520251438 31907969196202 34808693668584 37973120365728 46411591558112 47861953794303 50630827154304 52213040502876 63815938392404 69617387337168 75946240731456 92823183116224 95723907588606 104426081005752 127631876784808 139234774674336 143585861382909 151892481462912 185646366232448 191447815177212 208852162011504 255263753569616 278469549348672 287171722765818 382895630354424 417704324023008 510527507139232 556939098697344 574343445531636 765791260708848 835408648046016 1021055014278464 1148686891063272 1531582521417696 1670817296092032 2042110028556928 2297373782126544 3063165042835392 4594747564253088 6126330085670784 9189495128506176 18378990257012352
• Sum of all divisors σ(n): 58132496193661890
• Sum of proper divisors (its aliquot sum) s(n): 39753505936649538
• 18378990257012352 is an abundant number, because the sum of its proper divisors (39753505936649538) is greater than itself. Its abundance is 21374515679637186

Bases of 18378990257012352

• Binary: 1000001010010111001100000100001100110010111111010000000₂
• Hexadecimal: 0x414B9821997E80
• Base-36: 50YT3KBK4G0

Squares and roots of 18378990257012352

• 18378990257012352 squared (18378990257012352²) is 337787282867354960624309080571904
• 18378990257012352 cubed (18378990257012352³) is 6208189180761792193192772797661283069702552158208
• The square root of 18378990257012352 is 135569134.6030222029
• The cube root of 18378990257012352 is 263900.7042448679

Scales and comparisons

• 18,378,990,257,012,352 seconds is equal to 584,395,040 years, 11 weeks, 4 days, 8 hours, 19 minutes, 12 seconds.
• To count from 1 to 18,378,990,257,012,352 would take you about one billion, seven hundred fifty-three million, one hundred eighty-five thousand, one hundred twenty 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 18378990257012352 cubic inches would be around 21991.7 feet tall.

Recreational maths with 18378990257012352

• 18378990257012352 backwards is 25321075209987381
• 18378990257012352 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18378990257012352's digits is 72
• More coming soon!