18997846992

Names of 18997846992

• Cardinal: 18997846992 can be written as Eighteen billion, nine hundred ninety-seven million, eight hundred forty-six thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 1.8997846992 × 10¹⁰

Factors of 18997846992

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 4508

Divisors of 18997846992

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 36 48 72 137 144 233 274 411 466 548 699 822 932 1096 1233 1398 1644 1864 2097 2192 2466 2796 3288 3728 4133 4194 4932 5592 6576 8266 8388 9864 11184 12399 16532 16776 19728 24798 31921 33064 33552 37197 49596 63842 66128 74394 95763 99192 127684 148788 191526 198384 255368 287289 297576 383052 510736 566221 574578 595152 766104 962989 1132442 1149156 1532208 1698663 1925978 2264884 2298312 2888967 3397326 3851956 4529768 4596624 5095989 5777934 6794652 7703912 8666901 9059536 10191978 11555868 13589304 15407824 17333802 20383956 23111736 27178608 34667604 40767912 46223472 69335208 81535824 131929493 138670416 263858986 395788479 527717972 791576958 1055435944 1187365437 1583153916 2110871888 2374730874 3166307832 4749461748 6332615664 9498923496 18997846992
• Sum of all divisors σ(n): 53798536584
• Sum of proper divisors (its aliquot sum) s(n): 34800689592
• 18997846992 is an abundant number, because the sum of its proper divisors (34800689592) is greater than itself. Its abundance is 15802842600

Bases of 18997846992

• Binary: 10001101100010111000010001111010000₂
• Hexadecimal: 0x46C5C23D0
• Base-36: 8Q6TSK0

Squares and roots of 18997846992

• 18997846992 squared (18997846992²) is 360918190331443448064
• 18997846992 cubed (18997846992³) is 6856668556546296392820770623488
• The square root of 18997846992 is 137832.6775187945
• The cube root of 18997846992 is 2668.3008538603

Scales and comparisons

• 18,997,846,992 seconds is equal to 604 years, 3 weeks, 5 days, 11 hours, 43 minutes, 12 seconds.
• To count from 1 to 18,997,846,992 would take you about one thousand, two hundred eight 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 18997846992 cubic inches would be around 222.4 feet tall.

Recreational maths with 18997846992

• 18997846992 backwards is 29964879981
• 18997846992 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18997846992's digits is 72
• More coming soon!