18012369378

Names of 18012369378

• Cardinal: 18012369378 can be written as Eighteen billion, twelve million, three hundred sixty-nine thousand, three hundred seventy-eight.

Scientific notation

• Scientific notation: 1.8012369378 × 10¹⁰

Factors of 18012369378

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 548

Divisors of 18012369378

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 37 53 67 73 74 106 111 134 146 159 201 219 222 313 318 402 438 626 939 1878 1961 2479 2701 3551 3869 3922 4891 4958 5402 5883 7102 7437 7738 8103 9782 10653 11581 11607 11766 14673 14874 16206 16589 20971 21306 22849 23162 23214 29346 33178 34743 41942 45698 49767 62913 68547 69486 99534 125826 131387 137094 143153 180967 259223 262774 286306 361934 394161 429459 518446 542901 613793 775927 777669 788322 845413 858918 1085802 1111463 1210997 1227586 1530883 1551854 1555338 1690826 1841379 2222926 2327781 2421994 2536239 3061766 3334389 3632991 3682758 4592649 4655562 5072478 6668778 7265982 9185298 9591251 19182502 28773753 41124131 44806889 56642671 57547506 81136799 82248262 89613778 113285342 123372393 134420667 162273598 169928013 243410397 246744786 268841334 339856026 486820794 3002061563 6004123126 9006184689 18012369378
• Sum of all divisors σ(n): 38907101952
• Sum of proper divisors (its aliquot sum) s(n): 20894732574
• 18012369378 is an abundant number, because the sum of its proper divisors (20894732574) is greater than itself. Its abundance is 2882363196

Bases of 18012369378

• Binary: 10000110001100111101111000111100010₂
• Hexadecimal: 0x4319EF1E2
• Base-36: 89W3L5U

Squares and roots of 18012369378

• 18012369378 squared (18012369378²) is 324445450609512106884
• 18012369378 cubed (18012369378³) is 5844031299390187309557624598152
• The square root of 18012369378 is 134210.1686833005
• The cube root of 18012369378 is 2621.3415704731

Scales and comparisons

• 18,012,369,378 seconds is equal to 572 years, 38 weeks, 2 days, 11 hours, 56 minutes, 18 seconds.
• To count from 1 to 18,012,369,378 would take you about one thousand, one hundred forty-five 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 18012369378 cubic inches would be around 218.4 feet tall.

Recreational maths with 18012369378

• 18012369378 backwards is 87396321081
• The number of decimal digits it has is: 11
• The sum of 18012369378's digits is 48
• More coming soon!