12491325440

Names of 12491325440

• Cardinal: 12491325440 can be written as Twelve billion, four hundred ninety-one million, three hundred twenty-five thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.249132544 × 10¹⁰

Factors of 12491325440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 286

Divisors of 12491325440

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 29 32 40 44 55 58 64 80 88 110 116 128 145 160 176 220 232 239 256 290 319 320 352 440 464 478 512 580 638 640 704 880 928 956 1024 1160 1195 1276 1280 1408 1595 1760 1856 1912 2048 2320 2390 2552 2560 2629 2816 3190 3520 3712 3824 4096 4640 4780 5104 5120 5258 5632 6380 6931 7040 7424 7648 8192 9280 9560 10208 10240 10516 11264 12760 13145 13862 14080 14848 15296 16384 18560 19120 20416 20480 21032 22528 25520 26290 27724 28160 29696 30592 32768 34655 37120 38240 40832 40960 42064 45056 51040 52580 55448 56320 59392 61184 69310 74240 76241 76480 81664 81920 84128 90112 102080 105160 110896 112640 118784 122368 138620 148480 152482 152960 163328 163840 168256 180224 204160 210320 221792 225280 237568 244736 277240 296960 304964 305920 326656 336512 360448 381205 408320 420640 443584 450560 475136 489472 554480 593920 609928 611840 653312 673024 762410 816640 841280 887168 901120 950272 978944 1108960 1187840 1219856 1223680 1306624 1346048 1524820 1633280 1682560 1774336 1802240 1957888 2217920 2375680 2439712 2447360 2613248 2692096 3049640 3266560 3365120 3548672 3915776 4435840 4751360 4879424 4894720 5226496 5384192 6099280 6533120 6730240 7097344 7831552 8871680 9758848 9789440 10452992 10768384 12198560 13066240 13460480 14194688 17743360 19517696 19578880 21536768 24397120 26132480 26920960 28389376 35486720 39035392 39157760 43073536 48794240 52264960 53841920 56778752 70973440 78070784 86147072 97588480 107683840 113557504 141946880 156141568 195176960 215367680 227115008 283893760 312283136 390353920 430735360 567787520 624566272 780707840 1135575040 1249132544 1561415680 2498265088 3122831360 6245662720 12491325440
• Sum of all divisors σ(n): 33973344000
• Sum of proper divisors (its aliquot sum) s(n): 21482018560
• 12491325440 is an abundant number, because the sum of its proper divisors (21482018560) is greater than itself. Its abundance is 8990693120

Bases of 12491325440

• Binary: 1011101000100010101000000000000000₂
• Hexadecimal: 0x2E88A8000
• Base-36: 5QL0GE8

Squares and roots of 12491325440

• 12491325440 squared (12491325440²) is 156033211247991193600
• 12491325440 cubed (12491325440³) is 1949061621146926545511645184000
• The square root of 12491325440 is 111764.5983305983
• The cube root of 12491325440 is 2320.2574426959

Scales and comparisons

• 12,491,325,440 seconds is equal to 397 years, 9 weeks, 4 days, 12 hours, 37 minutes, 20 seconds.
• To count from 1 to 12,491,325,440 would take you about seven hundred ninety-four 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 12491325440 cubic inches would be around 193.4 feet tall.

Recreational maths with 12491325440

• 12491325440 backwards is 04452319421
• The number of decimal digits it has is: 11
• The sum of 12491325440's digits is 35
• More coming soon!