18934731840

Names of 18934731840

• Cardinal: 18934731840 can be written as Eighteen billion, nine hundred thirty-four million, seven hundred thirty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.893473184 × 10¹⁰

Factors of 18934731840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 323410

Divisors of 18934731840

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 61 64 80 96 120 122 160 183 192 240 244 305 320 366 480 488 610 732 915 960 976 1220 1464 1830 1952 2440 2928 3660 3904 4880 5856 7320 9760 11712 14640 19520 29280 58560 323339 646678 970017 1293356 1616695 1940034 2586712 3233390 3880068 4850085 5173424 6466780 7760136 9700170 10346848 12933560 15520272 19400340 19723679 20693696 25867120 31040544 38800680 39447358 51734240 59171037 62081088 77601360 78894716 98618395 103468480 118342074 155202720 157789432 197236790 236684148 295855185 310405440 315578864 394473580 473368296 591710370 631157728 788947160 946736592 1183420740 1262315456 1577894320 1893473184 2366841480 3155788640 3786946368 4733682960 6311577280 9467365920 18934731840
• Sum of all divisors σ(n): 61103499840
• Sum of proper divisors (its aliquot sum) s(n): 42168768000
• 18934731840 is an abundant number, because the sum of its proper divisors (42168768000) is greater than itself. Its abundance is 23234036160

Bases of 18934731840

• Binary: 10001101000100110010001010001000000₂
• Hexadecimal: 0x468991440
• Base-36: 8P590LC

Squares and roots of 18934731840

• 18934731840 squared (18934731840²) is 358524069852709785600
• 18934731840 cubed (18934731840³) is 6788557120846488087679893504000
• The square root of 18934731840 is 137603.5313500347
• The cube root of 18934731840 is 2665.3426755291

Scales and comparisons

• 18,934,731,840 seconds is equal to 602 years, 3 weeks, 2 days, 23 hours, 44 minutes.
• To count from 1 to 18,934,731,840 would take you about one thousand, two hundred four 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 18934731840 cubic inches would be around 222.1 feet tall.

Recreational maths with 18934731840

• 18934731840 backwards is 04813743981
• 18934731840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18934731840's digits is 48
• More coming soon!