12999420

Names of 12999420

• Cardinal: 12999420 can be written as Twelve million, nine hundred ninety-nine thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.299942 × 10⁷

Factors of 12999420

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 217

Divisors of 12999420

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 19 20 21 27 28 30 35 36 38 42 45 54 57 60 63 70 76 84 90 95 105 108 114 126 133 135 140 171 180 181 189 190 210 228 252 266 270 285 315 342 362 378 380 399 420 513 532 540 543 570 630 665 684 724 756 798 855 905 945 1026 1086 1140 1197 1260 1267 1330 1596 1629 1710 1810 1890 1995 2052 2172 2394 2534 2565 2660 2715 3258 3420 3439 3591 3620 3780 3801 3990 4788 4887 5068 5130 5430 5985 6335 6516 6878 7182 7602 7980 8145 9774 10260 10317 10860 11403 11970 12670 13756 14364 15204 16290 17195 17955 19005 19548 20634 22806 23940 24073 24435 25340 30951 32580 34209 34390 35910 38010 41268 45612 48146 48870 51585 57015 61902 68418 68780 71820 72219 76020 92853 96292 97740 103170 114030 120365 123804 136836 144438 154755 171045 185706 206340 216657 228060 240730 288876 309510 342090 361095 371412 433314 464265 481460 619020 649971 684180 722190 866628 928530 1083285 1299942 1444380 1857060 2166570 2599884 3249855 4333140 6499710 12999420
• Sum of all divisors σ(n): 48921600
• Sum of proper divisors (its aliquot sum) s(n): 35922180
• 12999420 is an abundant number, because the sum of its proper divisors (35922180) is greater than itself. Its abundance is 22922760

Bases of 12999420

• Binary: 110001100101101011111100₂
• Hexadecimal: 0xC65AFC
• Base-36: 7QMF0

Squares and roots of 12999420

• 12999420 squared (12999420²) is 168984920336400
• 12999420 cubed (12999420³) is 2196705953119404888000
• The square root of 12999420 is 3605.4708430383
• The cube root of 12999420 is 235.1299718633

Scales and comparisons

• 12,999,420 seconds is equal to 21 weeks, 3 days, 10 hours, 57 minutes.
• To count from 1 to 12,999,420 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 12999420 cubic inches would be around 19.6 feet tall.

Recreational maths with 12999420

• 12999420 backwards is 02499921
• 12999420 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12999420's digits is 36
• More coming soon!