18349982720

Names of 18349982720

• Cardinal: 18349982720 can be written as Eighteen billion, three hundred forty-nine million, nine hundred eighty-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.834998272 × 10¹⁰

Factors of 18349982720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 19989

Divisors of 18349982720

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 128 160 181 256 320 362 512 640 724 905 1024 1280 1448 1810 2560 2896 3620 5120 5792 7240 11584 14480 19801 23168 28960 39602 46336 57920 79204 92672 99005 115840 158408 185344 198010 231680 316816 396020 463360 633632 792040 926720 1267264 1584080 2534528 3168160 3583981 5069056 6336320 7167962 10138112 12672640 14335924 17919905 20276224 25345280 28671848 35839810 50690560 57343696 71679620 101381120 114687392 143359240 229374784 286718480 458749568 573436960 917499136 1146873920 1834998272 2293747840 3669996544 4587495680 9174991360 18349982720
• Sum of all divisors σ(n): 44263885848
• Sum of proper divisors (its aliquot sum) s(n): 25913903128
• 18349982720 is an abundant number, because the sum of its proper divisors (25913903128) is greater than itself. Its abundance is 7563920408

Bases of 18349982720

• Binary: 10001000101101111101000010000000000₂
• Hexadecimal: 0x445BE8400
• Base-36: 8FH3TA8

Squares and roots of 18349982720

• 18349982720 squared (18349982720²) is 336721865824298598400
• 18349982720 cubed (18349982720³) is 6178840419322037836760219648000
• The square root of 18349982720 is 135462.1080597817
• The cube root of 18349982720 is 2637.6179308919

Scales and comparisons

• 18,349,982,720 seconds is equal to 583 years, 24 weeks, 4 days, 1 hour, 25 minutes, 20 seconds.
• To count from 1 to 18,349,982,720 would take you about one thousand, one hundred sixty-six 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 18349982720 cubic inches would be around 219.8 feet tall.

Recreational maths with 18349982720

• 18349982720 backwards is 02728994381
• The number of decimal digits it has is: 11
• The sum of 18349982720's digits is 53
• More coming soon!