18738744516

Names of 18738744516

• Cardinal: 18738744516 can be written as Eighteen billion, seven hundred thirty-eight million, seven hundred forty-four thousand, five hundred sixteen.

Scientific notation

• Scientific notation: 1.8738744516 × 10¹⁰

Factors of 18738744516

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 20484

Divisors of 18738744516

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 9 12 18 29 36 58 87 116 174 261 348 522 919 1044 1838 2757 3676 5514 8271 11028 16542 19531 26651 33084 39062 53302 58593 78124 79953 106604 117186 159906 175779 234372 239859 319812 351558 479718 566399 703116 959436 1132798 1699197 2265596 3398394 5097591 6796788 10195182 17948989 20390364 35897978 53846967 71795956 107693934 161540901 215387868 323081802 520520681 646163604 1041041362 1561562043 2082082724 3123124086 4684686129 6246248172 9369372258 18738744516
• Sum of all divisors σ(n): 49056571200
• Sum of proper divisors (its aliquot sum) s(n): 30317826684
• 18738744516 is an abundant number, because the sum of its proper divisors (30317826684) is greater than itself. Its abundance is 11579082168

Bases of 18738744516

• Binary: 10001011100111010101000110011000100₂
• Hexadecimal: 0x45CEA8CC4
• Base-36: 8LWKBT0

Squares and roots of 18738744516

• 18738744516 squared (18738744516²) is 351140546035920074256
• 18738744516 cubed (18738744516³) is 6579932981375842830478932780096
• The square root of 18738744516 is 136889.5339900023
• The cube root of 18738744516 is 2656.1147282617

Scales and comparisons

• 18,738,744,516 seconds is equal to 595 years, 43 weeks, 2 days, 14 hours, 48 minutes, 36 seconds.
• To count from 1 to 18,738,744,516 would take you about one thousand, one hundred ninety-one 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 18738744516 cubic inches would be around 221.3 feet tall.

Recreational maths with 18738744516

• 18738744516 backwards is 61544783781
• The number of decimal digits it has is: 11
• The sum of 18738744516's digits is 54
• More coming soon!