18390980080

Names of 18390980080

• Cardinal: 18390980080 can be written as Eighteen billion, three hundred ninety million, nine hundred eighty thousand and eighty.

Scientific notation

• Scientific notation: 1.839098008 × 10¹⁰

Factors of 18390980080

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 16521

Divisors of 18390980080

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 5 8 10 11 16 19 20 22 38 40 44 55 67 76 80 88 95 110 134 152 176 190 209 220 268 304 335 380 418 440 536 670 737 760 836 880 1045 1072 1273 1340 1474 1520 1672 2090 2546 2680 2948 3344 3685 4180 5092 5360 5896 6365 7370 8360 10184 11792 12730 14003 14740 16417 16720 20368 25460 28006 29480 32834 50920 56012 58960 65668 70015 82085 101840 112024 131336 140030 164170 180587 224048 262672 280060 311923 328340 361174 560120 623846 656680 722348 902935 1099939 1120240 1247692 1313360 1444696 1559615 1805870 2199878 2495384 2889392 3119230 3431153 3611740 4399756 4990768 5499695 6238460 6862306 7223480 8799512 10999390 12099329 12476920 13724612 14446960 17155765 17599024 20898841 21998780 24198658 24953840 27449224 34311530 41797682 43997560 48397316 54898448 60496645 68623060 83595364 87995120 96794632 104494205 120993290 137246120 167190728 193589264 208988410 229887251 241986580 274492240 334381456 417976820 459774502 483973160 835953640 919549004 967946320 1149436255 1671907280 1839098008 2298872510 3678196016 4597745020 9195490040 18390980080
• Sum of all divisors σ(n): 49837167360
• Sum of proper divisors (its aliquot sum) s(n): 31446187280
• 18390980080 is an abundant number, because the sum of its proper divisors (31446187280) is greater than itself. Its abundance is 13055207200

Bases of 18390980080

• Binary: 10001001000001100000001010111110000₂
• Hexadecimal: 0x4483015F0
• Base-36: 8G5IJ1S

Squares and roots of 18390980080

• 18390980080 squared (18390980080²) is 338228148302956806400
• 18390980080 cubed (18390980080³) is 6220347137934964431602816512000
• The square root of 18390980080 is 135613.3477206429
• The cube root of 18390980080 is 2639.5807836027

Scales and comparisons

• 18,390,980,080 seconds is equal to 584 years, 40 weeks, 2 days, 13 hours, 34 minutes, 40 seconds.
• To count from 1 to 18,390,980,080 would take you about one thousand, one hundred sixty-nine 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 18390980080 cubic inches would be around 220 feet tall.

Recreational maths with 18390980080

• 18390980080 backwards is 08008909381
• The number of decimal digits it has is: 11
• The sum of 18390980080's digits is 46
• More coming soon!