19689472

Names of 19689472

• Cardinal: 19689472 can be written as Nineteen million, six hundred eighty-nine thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.9689472 × 10⁷

Factors of 19689472

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 55

Divisors of 19689472

• Number of divisors d(n): 104
• Complete list of divisors:
  1 2 4 8 11 16 19 22 23 32 38 44 46 64 76 88 92 128 152 176 184 209 253 256 304 352 368 418 437 506 512 608 704 736 836 874 1012 1024 1216 1408 1472 1672 1748 2024 2048 2432 2816 2944 3344 3496 4048 4096 4807 4864 5632 5888 6688 6992 8096 9614 9728 11264 11776 13376 13984 16192 19228 19456 22528 23552 26752 27968 32384 38456 38912 45056 47104 53504 55936 64768 76912 77824 94208 107008 111872 129536 153824 214016 223744 259072 307648 428032 447488 518144 615296 856064 894976 1036288 1230592 1789952 2461184 4922368 9844736 19689472
• Sum of all divisors σ(n): 47180160
• Sum of proper divisors (its aliquot sum) s(n): 27490688
• 19689472 is an abundant number, because the sum of its proper divisors (27490688) is greater than itself. Its abundance is 7801216

Bases of 19689472

• Binary: 1001011000111000000000000₂
• Hexadecimal: 0x12C7000
• Base-36: BQ0HS

Squares and roots of 19689472

• 19689472 squared (19689472²) is 387675307638784
• 19689472 cubed (19689472³) is 7633122114845223682048
• The square root of 19689472 is 4437.2820509857
• The cube root of 19689472 is 270.0295898069

Scales and comparisons

• 19,689,472 seconds is equal to 32 weeks, 3 days, 21 hours, 17 minutes, 52 seconds.
• To count from 1 to 19,689,472 would take you about forty-eight 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 19689472 cubic inches would be around 22.5 feet tall.

Recreational maths with 19689472

• 19689472 backwards is 27498691
• 19689472 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 19689472's digits is 46
• More coming soon!