12749127680

Names of 12749127680

• Cardinal: 12749127680 can be written as Twelve billion, seven hundred forty-nine million, one hundred twenty-seven thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.274912768 × 10¹⁰

Factors of 12749127680

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 8217

Divisors of 12749127680

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 128 152 160 190 256 304 320 380 512 608 640 760 1024 1216 1280 1520 2048 2432 2560 3040 4096 4864 5120 6080 8191 8192 9728 10240 12160 16382 16384 19456 20480 24320 32764 38912 40955 40960 48640 65528 77824 81910 81920 97280 131056 155629 155648 163820 194560 262112 311258 311296 327640 389120 524224 622516 655280 778145 778240 1048448 1245032 1310560 1556290 1556480 2096896 2490064 2621120 3112580 4193792 4980128 5242240 6225160 8387584 9960256 10484480 12450320 16775168 19920512 20968960 24900640 33550336 39841024 41937920 49801280 67100672 79682048 83875840 99602560 134201344 159364096 167751680 199205120 318728192 335503360 398410240 637456384 671006720 796820480 1274912768 1593640960 2549825536 3187281920 6374563840 12749127680
• Sum of all divisors σ(n): 32211271680
• Sum of proper divisors (its aliquot sum) s(n): 19462144000
• 12749127680 is an abundant number, because the sum of its proper divisors (19462144000) is greater than itself. Its abundance is 6713016320

Bases of 12749127680

• Binary: 1011110111111010000100000000000000₂
• Hexadecimal: 0x2F7E84000
• Base-36: 5UUI1VK

Squares and roots of 12749127680

• 12749127680 squared (12749127680²) is 162540256600942182400
• 12749127680 cubed (12749127680³) is 2072246484545374691715448832000
• The square root of 12749127680 is 112912.0351424063
• The cube root of 12749127680 is 2336.1110849783

Scales and comparisons

• 12,749,127,680 seconds is equal to 405 years, 19 weeks, 6 days, 8 hours, 21 minutes, 20 seconds.
• To count from 1 to 12,749,127,680 would take you about eight hundred ten years!

  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 12749127680 cubic inches would be around 194.7 feet tall.

Recreational maths with 12749127680

• 12749127680 backwards is 08672194721
• The number of decimal digits it has is: 11
• The sum of 12749127680's digits is 47
• More coming soon!