20129472

Names of 20129472

• Cardinal: 20129472 can be written as Twenty million, one hundred twenty-nine thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.0129472 × 10⁷

Factors of 20129472

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 369

Divisors of 20129472

• Number of divisors d(n): 140
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 64 66 72 81 88 96 99 108 132 144 162 176 192 198 216 264 288 297 324 352 353 396 432 528 576 594 648 704 706 792 864 891 1056 1059 1188 1296 1412 1584 1728 1782 2112 2118 2376 2592 2824 3168 3177 3564 3883 4236 4752 5184 5648 6336 6354 7128 7766 8472 9504 9531 11296 11649 12708 14256 15532 16944 19008 19062 22592 23298 25416 28512 28593 31064 33888 34947 38124 46596 50832 57024 57186 62128 67776 69894 76248 93192 101664 104841 114372 124256 139788 152496 186384 203328 209682 228744 248512 279576 304992 314523 372768 419364 457488 559152 609984 629046 745536 838728 914976 1118304 1258092 1677456 1829952 2236608 2516184 3354912 5032368 6709824 10064736 20129472
• Sum of all divisors σ(n): 65279016
• Sum of proper divisors (its aliquot sum) s(n): 45149544
• 20129472 is an abundant number, because the sum of its proper divisors (45149544) is greater than itself. Its abundance is 25020072

Bases of 20129472

• Binary: 1001100110010011011000000₂
• Hexadecimal: 0x13326C0
• Base-36: BZG00

Squares and roots of 20129472

• 20129472 squared (20129472²) is 405195642998784
• 20129472 cubed (20129472³) is 8156374350266018562048
• The square root of 20129472 is 4486.5880131789
• The cube root of 20129472 is 272.0262373767

Scales and comparisons

• 20,129,472 seconds is equal to 33 weeks, 1 day, 23 hours, 31 minutes, 12 seconds.
• To count from 1 to 20,129,472 would take you about forty-nine 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 20129472 cubic inches would be around 22.7 feet tall.

Recreational maths with 20129472

• 20129472 backwards is 27492102
• 20129472 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20129472's digits is 27
• More coming soon!