20389730520

Names of 20389730520

• Cardinal: 20389730520 can be written as Twenty billion, three hundred eighty-nine million, seven hundred thirty thousand, five hundred twenty.

Scientific notation

• Scientific notation: 2.038973052 × 10¹⁰

Factors of 20389730520

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7389

Divisors of 20389730520

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 101 120 202 239 303 404 478 505 606 717 808 956 1010 1195 1212 1434 1515 1912 2020 2390 2424 2868 3030 3585 4040 4780 5736 6060 7039 7170 9560 12120 14078 14340 21117 24139 28156 28680 35195 42234 48278 56312 70390 72417 84468 96556 105585 120695 140780 144834 168936 193112 211170 241390 281560 289668 362085 422340 482780 579336 710939 724170 844680 965560 1421878 1448340 1682321 2132817 2843756 2896680 3364642 3554695 4265634 5046963 5687512 6729284 7109390 8411605 8531268 10093926 10664085 13458568 14218780 16823210 17062536 20187852 21328170 25234815 28437560 33646420 40375704 42656340 50469630 67292840 85312680 100939260 169914421 201878520 339828842 509743263 679657684 849572105 1019486526 1359315368 1699144210 2038973052 2548716315 3398288420 4077946104 5097432630 6796576840 10194865260 20389730520
• Sum of all divisors σ(n): 62042112000
• Sum of proper divisors (its aliquot sum) s(n): 41652381480
• 20389730520 is an abundant number, because the sum of its proper divisors (41652381480) is greater than itself. Its abundance is 21262650960

Bases of 20389730520

• Binary: 10010111111010100101001100011011000₂
• Hexadecimal: 0x4BF5298D8
• Base-36: 9D7IORC

Squares and roots of 20389730520

• 20389730520 squared (20389730520²) is 415741110678219470400
• 20389730520 cubed (20389730520³) is 8476849212814389434873116608000
• The square root of 20389730520 is 142792.6136745175
• The cube root of 20389730520 is 2731.9358379949

Scales and comparisons

• 20,389,730,520 seconds is equal to 648 years, 17 weeks, 1 day, 6 hours, 2 minutes.
• To count from 1 to 20,389,730,520 would take you about one thousand, two hundred ninety-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 20389730520 cubic inches would be around 227.7 feet tall.

Recreational maths with 20389730520

• 20389730520 backwards is 02503798302
• The number of decimal digits it has is: 11
• The sum of 20389730520's digits is 39
• More coming soon!