12309440

Names of 12309440

• Cardinal: 12309440 can be written as Twelve million, three hundred nine thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.230944 × 10⁷

Factors of 12309440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 300

Divisors of 12309440

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 20 22 26 32 40 44 52 55 64 65 80 88 104 110 130 143 160 176 208 220 260 269 286 320 352 416 440 520 538 572 704 715 832 880 1040 1076 1144 1345 1430 1760 2080 2152 2288 2690 2860 2959 3497 3520 4160 4304 4576 5380 5720 5918 6994 8608 9152 10760 11440 11836 13988 14795 17216 17485 21520 22880 23672 27976 29590 34970 38467 43040 45760 47344 55952 59180 69940 76934 86080 94688 111904 118360 139880 153868 189376 192335 223808 236720 279760 307736 384670 473440 559520 615472 769340 946880 1119040 1230944 1538680 2461888 3077360 6154720 12309440
• Sum of all divisors σ(n): 34564320
• Sum of proper divisors (its aliquot sum) s(n): 22254880
• 12309440 is an abundant number, because the sum of its proper divisors (22254880) is greater than itself. Its abundance is 9945440

Bases of 12309440

• Binary: 101110111101001111000000₂
• Hexadecimal: 0xBBD3C0
• Base-36: 7BU0W

Squares and roots of 12309440

• 12309440 squared (12309440²) is 151522313113600
• 12309440 cubed (12309440³) is 1865154821933072384000
• The square root of 12309440 is 3508.4811528637
• The cube root of 12309440 is 230.8940626039

Scales and comparisons

• 12,309,440 seconds is equal to 20 weeks, 2 days, 11 hours, 17 minutes, 20 seconds.
• To count from 1 to 12,309,440 would take you about thirty 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 12309440 cubic inches would be around 19.2 feet tall.

Recreational maths with 12309440

• 12309440 backwards is 04490321
• The number of decimal digits it has is: 8
• The sum of 12309440's digits is 23
• More coming soon!