20345920

Names of 20345920

• Cardinal: 20345920 can be written as Twenty million, three hundred forty-five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.034592 × 10⁷

Factors of 20345920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 338

Divisors of 20345920

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 31 32 35 40 56 62 64 70 80 112 124 140 155 160 217 224 248 280 293 310 320 434 448 496 560 586 620 868 992 1085 1120 1172 1240 1465 1736 1984 2051 2170 2240 2344 2480 2930 3472 4102 4340 4688 4960 5860 6944 8204 8680 9083 9376 9920 10255 11720 13888 16408 17360 18166 18752 20510 23440 32816 34720 36332 41020 45415 46880 63581 65632 69440 72664 82040 90830 93760 127162 131264 145328 164080 181660 254324 290656 317905 328160 363320 508648 581312 635810 656320 726640 1017296 1271620 1453280 2034592 2543240 2906560 4069184 5086480 10172960 20345920
• Sum of all divisors σ(n): 57351168
• Sum of proper divisors (its aliquot sum) s(n): 37005248
• 20345920 is an abundant number, because the sum of its proper divisors (37005248) is greater than itself. Its abundance is 16659328

Bases of 20345920

• Binary: 1001101100111010001000000₂
• Hexadecimal: 0x1367440
• Base-36: C430G

Squares and roots of 20345920

• 20345920 squared (20345920²) is 413956460646400
• 20345920 cubed (20345920³) is 8422325031794802688000
• The square root of 20345920 is 4510.6451866667
• The cube root of 20345920 is 272.9977771335

Scales and comparisons

• 20,345,920 seconds is equal to 33 weeks, 4 days, 11 hours, 38 minutes, 40 seconds.
• To count from 1 to 20,345,920 would take you about fifty weeks!

  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 20345920 cubic inches would be around 22.7 feet tall.

Recreational maths with 20345920

• 20345920 backwards is 02954302
• The number of decimal digits it has is: 8
• The sum of 20345920's digits is 25
• More coming soon!