20423988

Names of 20423988

• Cardinal: 20423988 can be written as Twenty million, four hundred twenty-three thousand, nine hundred eighty-eight.

Scientific notation

• Scientific notation: 2.0423988 × 10⁷

Factors of 20423988

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 391

Divisors of 20423988

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 81 108 117 156 162 169 234 324 338 351 373 468 507 676 702 746 1014 1053 1119 1404 1492 1521 2028 2106 2238 3042 3357 4212 4476 4563 4849 6084 6714 9126 9698 10071 13428 13689 14547 18252 19396 20142 27378 29094 30213 40284 43641 54756 58188 60426 63037 87282 120852 126074 130923 174564 189111 252148 261846 378222 392769 523692 567333 756444 785538 1134666 1571076 1701999 2269332 3403998 5105997 6807996 10211994 20423988
• Sum of all divisors σ(n): 57970374
• Sum of proper divisors (its aliquot sum) s(n): 37546386
• 20423988 is an abundant number, because the sum of its proper divisors (37546386) is greater than itself. Its abundance is 17122398

Bases of 20423988

• Binary: 1001101111010010100110100₂
• Hexadecimal: 0x137A534
• Base-36: C5R90

Squares and roots of 20423988

• 20423988 squared (20423988²) is 417139285824144
• 20423988 cubed (20423988³) is 8519647768000887166272
• The square root of 20423988 is 4519.2906523037
• The cube root of 20423988 is 273.3464988041

Scales and comparisons

• 20,423,988 seconds is equal to 33 weeks, 5 days, 9 hours, 19 minutes, 48 seconds.
• To count from 1 to 20,423,988 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 20423988 cubic inches would be around 22.8 feet tall.

Recreational maths with 20423988

• 20423988 backwards is 88932402
• 20423988 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20423988's digits is 36
• More coming soon!