18004999680

Names of 18004999680

• Cardinal: 18004999680 can be written as Eighteen billion, four million, nine hundred ninety-nine thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.800499968 × 10¹⁰

Factors of 18004999680

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 260499

Divisors of 18004999680

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 128 135 144 160 180 192 216 240 256 270 288 320 360 384 432 480 512 540 576 640 720 768 864 960 1080 1152 1280 1440 1536 1728 1920 2160 2304 2560 2880 3456 3840 4320 4608 5760 6912 7680 8640 11520 13824 17280 23040 34560 69120 260489 520978 781467 1041956 1302445 1562934 2083912 2344401 2604890 3125868 3907335 4167824 4688802 5209780 6251736 7033203 7814670 8335648 9377604 10419560 11722005 12503472 14066406 15629340 16671296 18755208 20839120 23444010 25006944 28132812 31258680 33342592 35166015 37510416 41678240 46888020 50013888 56265624 62517360 66685184 70332030 75020832 83356480 93776040 100027776 112531248 125034720 133370368 140664060 150041664 166712960 187552080 200055552 225062496 250069440 281328120 300083328 333425920 375104160 400111104 450124992 500138880 562656240 600166656 666851840 750208320 900249984 1000277760 1125312480 1200333312 1500416640 1800499968 2000555520 2250624960 3000833280 3600999936 4501249920 6001666560 9002499840 18004999680
• Sum of all divisors σ(n): 63955504800
• Sum of proper divisors (its aliquot sum) s(n): 45950505120
• 18004999680 is an abundant number, because the sum of its proper divisors (45950505120) is greater than itself. Its abundance is 27945505440

Bases of 18004999680

• Binary: 10000110001001011100111111000000000₂
• Hexadecimal: 0x4312E7E00
• Base-36: 89RPMO0

Squares and roots of 18004999680

• 18004999680 squared (18004999680²) is 324180013476800102400
• 18004999680 cubed (18004999680³) is 5836861038912181531135967232000
• The square root of 18004999680 is 134182.7100635547
• The cube root of 18004999680 is 2620.9840174565

Scales and comparisons

• 18,004,999,680 seconds is equal to 572 years, 26 weeks, 1 day, 4 hours, 48 minutes.
• To count from 1 to 18,004,999,680 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 18004999680 cubic inches would be around 218.4 feet tall.

Recreational maths with 18004999680

• 18004999680 backwards is 08699940081
• 18004999680 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18004999680's digits is 54
• More coming soon!