12997656

Names of 12997656

• Cardinal: 12997656 can be written as Twelve million, nine hundred ninety-seven thousand, six hundred fifty-six.

Scientific notation

• Scientific notation: 1.2997656 × 10⁷

Factors of 12997656

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 107

Divisors of 12997656

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 17 18 21 24 28 34 36 37 41 42 51 56 63 68 72 74 82 84 102 111 119 123 126 136 148 153 164 168 204 222 238 246 252 259 287 296 306 328 333 357 369 408 444 476 492 504 518 574 612 629 666 697 714 738 777 861 888 952 984 1036 1071 1148 1224 1258 1332 1394 1428 1476 1517 1554 1722 1887 2072 2091 2142 2296 2331 2516 2583 2664 2788 2856 2952 3034 3108 3444 3774 4182 4284 4403 4551 4662 4879 5032 5166 5576 5661 6068 6216 6273 6888 7548 8364 8568 8806 9102 9324 9758 10332 10619 11322 12136 12546 13209 13653 14637 15096 16728 17612 18204 18648 19516 20664 21238 22644 25092 25789 26418 27306 29274 31857 35224 36408 39032 39627 42476 43911 45288 50184 51578 52836 54612 58548 63714 77367 79254 84952 87822 95571 103156 105672 109224 117096 127428 154734 158508 175644 180523 191142 206312 232101 254856 309468 317016 351288 361046 382284 464202 541569 618936 722092 764568 928404 1083138 1444184 1624707 1856808 2166276 3249414 4332552 6498828 12997656
• Sum of all divisors σ(n): 44815680
• Sum of proper divisors (its aliquot sum) s(n): 31818024
• 12997656 is an abundant number, because the sum of its proper divisors (31818024) is greater than itself. Its abundance is 18820368

Bases of 12997656

• Binary: 110001100101010000011000₂
• Hexadecimal: 0xC65418
• Base-36: 7QL20

Squares and roots of 12997656

• 12997656 squared (12997656²) is 168939061494336
• 12997656 cubed (12997656³) is 2195811806266225276416
• The square root of 12997656 is 3605.2262064953
• The cube root of 12997656 is 235.1193357983

Scales and comparisons

• 12,997,656 seconds is equal to 21 weeks, 3 days, 10 hours, 27 minutes, 36 seconds.
• To count from 1 to 12,997,656 would take you about thirty-two 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 12997656 cubic inches would be around 19.6 feet tall.

Recreational maths with 12997656

• 12997656 backwards is 65679921
• The number of decimal digits it has is: 8
• The sum of 12997656's digits is 45
• More coming soon!