20904960

Names of 20904960

• Cardinal: 20904960 can be written as Twenty million, nine hundred four thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 2.090496 × 10⁷

Factors of 20904960

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1371

Divisors of 20904960

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1024 1280 1361 1536 1920 2560 2722 3072 3840 4083 5120 5444 6805 7680 8166 10888 13610 15360 16332 20415 21776 27220 32664 40830 43552 54440 65328 81660 87104 108880 130656 163320 174208 217760 261312 326640 348416 435520 522624 653280 696832 871040 1045248 1306560 1393664 1742080 2090496 2613120 3484160 4180992 5226240 6968320 10452480 20904960
• Sum of all divisors σ(n): 66912336
• Sum of proper divisors (its aliquot sum) s(n): 46007376
• 20904960 is an abundant number, because the sum of its proper divisors (46007376) is greater than itself. Its abundance is 25102416

Bases of 20904960

• Binary: 1001111101111110000000000₂
• Hexadecimal: 0x13EFC00
• Base-36: CG2DC

Squares and roots of 20904960

• 20904960 squared (20904960²) is 437017352601600
• 20904960 cubed (20904960³) is 9135830275442343936000
• The square root of 20904960 is 4572.1942215965
• The cube root of 20904960 is 275.4755847633

Scales and comparisons

• 20,904,960 seconds is equal to 34 weeks, 3 days, 22 hours, 56 minutes.
• To count from 1 to 20,904,960 would take you about fifty-one 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 20904960 cubic inches would be around 23 feet tall.

Recreational maths with 20904960

• 20904960 backwards is 06940902
• 20904960 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20904960's digits is 30
• More coming soon!