18420631455616

Names of 18420631455616

• Cardinal: 18420631455616 can be written as Eighteen trillion, four hundred twenty billion, six hundred thirty-one million, four hundred fifty-five thousand, six hundred sixteen.

Scientific notation

• Scientific notation: 1.8420631455616 × 10¹³

Factors of 18420631455616

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 851545478

Divisors of 18420631455616

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 64 104 128 169 208 338 416 676 832 1352 1664 2704 5408 10816 21632 851545463 1703090926 3406181852 6812363704 11070091019 13624727408 22140182038 27249454816 44280364076 54498909632 88560728152 108997819264 143911183247 177121456304 287822366494 354242912608 575644732988 708485825216 1151289465976 1416971650432 2302578931952 4605157863904 9210315727808 18420631455616
• Sum of all divisors σ(n): 39737369077560
• Sum of proper divisors (its aliquot sum) s(n): 21316737621944
• 18420631455616 is an abundant number, because the sum of its proper divisors (21316737621944) is greater than itself. Its abundance is 2896106166328

Bases of 18420631455616

• Binary: 100001100000011100011001100011100011110000000₂
• Hexadecimal: 0x10C0E331C780
• Base-36: 6J2BKD18G

Squares and roots of 18420631455616

• 18420631455616 squared (18420631455616²) is 339319663223629634977939456
• 18420631455616 cubed (18420631455616³) is 6250482461886219665890555629425599184896
• The square root of 18420631455616 is 4291926.3105994725
• The cube root of 18420631455616 is 26409.9860139073

Scales and comparisons

• 18,420,631,455,616 seconds is equal to 585,719 years, 5 weeks, 1 day, 23 hours, 16 seconds.
• To count from 1 to 18,420,631,455,616 would take you about one million, four hundred sixty-four thousand, two hundred ninety-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 18420631455616 cubic inches would be around 2200.8 feet tall.

Recreational maths with 18420631455616

• 18420631455616 backwards is 61655413602481
• 18420631455616 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18420631455616's digits is 52
• More coming soon!