18683968940

Names of 18683968940

• Cardinal: 18683968940 can be written as Eighteen billion, six hundred eighty-three million, nine hundred sixty-eight thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.868396894 × 10¹⁰

Factors of 18683968940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 140729

Divisors of 18683968940

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 73 91 130 140 146 182 260 292 364 365 455 511 730 910 949 1022 1460 1820 1898 2044 2555 3796 4745 5110 6643 9490 10220 13286 18980 26572 33215 66430 132860 140629 281258 562516 703145 984403 1406290 1828177 1968806 2812580 3656354 3937612 4922015 7312708 9140885 9844030 10265917 12797239 18281770 19688060 20531834 25594478 36563540 41063668 51188956 51329585 63986195 71861419 102659170 127972390 133456921 143722838 205318340 255944780 266913842 287445676 359307095 533827684 667284605 718614190 934198447 1334569210 1437228380 1868396894 2669138420 3736793788 4670992235 9341984470 18683968940
• Sum of all divisors σ(n): 48952740480
• Sum of proper divisors (its aliquot sum) s(n): 30268771540
• 18683968940 is an abundant number, because the sum of its proper divisors (30268771540) is greater than itself. Its abundance is 11584802600

Bases of 18683968940

• Binary: 10001011001101001101011110110101100₂
• Hexadecimal: 0x459A6BDAC
• Base-36: 8KZYAP8

Squares and roots of 18683968940

• 18683968940 squared (18683968940²) is 349090695350884723600
• 18683968940 cubed (18683968940³) is 6522399709178932577262884984000
• The square root of 18683968940 is 136689.3153834635
• The cube root of 18683968940 is 2653.5241561553

Scales and comparisons

• 18,683,968,940 seconds is equal to 594 years, 4 weeks, 5 days, 15 hours, 22 minutes, 20 seconds.
• To count from 1 to 18,683,968,940 would take you about one thousand, one hundred eighty-eight 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 18683968940 cubic inches would be around 221.1 feet tall.

Recreational maths with 18683968940

• 18683968940 backwards is 04986938681
• The number of decimal digits it has is: 11
• The sum of 18683968940's digits is 62
• More coming soon!