12691980

Names of 12691980

• Cardinal: 12691980 can be written as Twelve million, six hundred ninety-one thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 1.269198 × 10⁷

Factors of 12691980

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1456

Divisors of 12691980

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 49 60 63 70 84 90 98 105 126 140 147 180 196 210 245 252 294 315 420 441 490 588 630 735 882 980 1260 1439 1470 1764 2205 2878 2940 4317 4410 5756 7195 8634 8820 10073 12951 14390 17268 20146 21585 25902 28780 30219 40292 43170 50365 51804 60438 64755 70511 86340 90657 100730 120876 129510 141022 151095 181314 201460 211533 259020 282044 302190 352555 362628 423066 453285 604380 634599 705110 846132 906570 1057665 1269198 1410220 1813140 2115330 2538396 3172995 4230660 6345990 12691980
• Sum of all divisors σ(n): 44815680
• Sum of proper divisors (its aliquot sum) s(n): 32123700
• 12691980 is an abundant number, because the sum of its proper divisors (32123700) is greater than itself. Its abundance is 19431720

Bases of 12691980

• Binary: 110000011010101000001100₂
• Hexadecimal: 0xC1AA0C
• Base-36: 7K170

Squares and roots of 12691980

• 12691980 squared (12691980²) is 161086356320400
• 12691980 cubed (12691980³) is 2044504812691390392000
• The square root of 12691980 is 3562.5805254055
• The cube root of 12691980 is 233.2615334641

Scales and comparisons

• 12,691,980 seconds is equal to 20 weeks, 6 days, 21 hours, 33 minutes.
• To count from 1 to 12,691,980 would take you about thirty-one 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 12691980 cubic inches would be around 19.4 feet tall.

Recreational maths with 12691980

• 12691980 backwards is 08919621
• 12691980 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12691980's digits is 36
• More coming soon!