13005972

Names of 13005972

• Cardinal: 13005972 can be written as Thirteen million, five thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 1.3005972 × 10⁷

Factors of 13005972

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 186

Divisors of 13005972

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 73 84 98 101 126 146 147 196 202 219 252 292 294 303 404 438 441 511 588 606 657 707 876 882 909 1022 1212 1314 1414 1533 1764 1818 2044 2121 2628 2828 3066 3577 3636 4242 4599 4949 6132 6363 7154 7373 8484 9198 9898 10731 12726 14308 14746 14847 18396 19796 21462 22119 25452 29492 29694 32193 42924 44238 44541 51611 59388 64386 66357 88476 89082 103222 128772 132714 154833 178164 206444 265428 309666 361277 464499 619332 722554 928998 1083831 1445108 1857996 2167662 3251493 4335324 6502986 13005972
• Sum of all divisors σ(n): 39151476
• Sum of proper divisors (its aliquot sum) s(n): 26145504
• 13005972 is an abundant number, because the sum of its proper divisors (26145504) is greater than itself. Its abundance is 13139532

Bases of 13005972

• Binary: 110001100111010010010100₂
• Hexadecimal: 0xC67494
• Base-36: 7QRH0

Squares and roots of 13005972

• 13005972 squared (13005972²) is 169155307664784
• 13005972 cubed (13005972³) is 2200029195139566090048
• The square root of 13005972 is 3606.3793477669
• The cube root of 13005972 is 235.1694688261

Scales and comparisons

• 13,005,972 seconds is equal to 21 weeks, 3 days, 12 hours, 46 minutes, 12 seconds.
• To count from 1 to 13,005,972 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 13005972 cubic inches would be around 19.6 feet tall.

Recreational maths with 13005972

• 13005972 backwards is 27950031
• The number of decimal digits it has is: 8
• The sum of 13005972's digits is 27
• More coming soon!