12991979520

Names of 12991979520

• Cardinal: 12991979520 can be written as Twelve billion, nine hundred ninety-one million, nine hundred seventy-nine thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.299197952 × 10¹⁰

Factors of 12991979520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 2734

Divisors of 12991979520

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 45 48 52 60 64 65 72 78 80 90 96 104 117 120 128 130 144 156 160 180 192 195 208 234 240 256 260 288 312 320 360 384 390 416 468 480 512 520 576 585 624 640 720 768 780 832 936 960 1024 1040 1152 1170 1248 1280 1440 1536 1560 1664 1872 1920 2048 2080 2304 2340 2496 2560 2711 2880 3072 3120 3328 3744 3840 4096 4160 4608 4680 4992 5120 5422 5760 6144 6240 6656 7488 7680 8133 8192 8320 9216 9360 9984 10240 10844 11520 12288 12480 13312 13555 14976 15360 16266 16640 18432 18720 19968 20480 21688 23040 24399 24576 24960 26624 27110 29952 30720 32532 33280 35243 36864 37440 39936 40665 40960 43376 46080 48798 49920 53248 54220 59904 61440 65064 66560 70486 73728 74880 79872 81330 86752 92160 97596 99840 105729 106496 108440 119808 121995 122880 130128 133120 140972 149760 159744 162660 173504 176215 184320 195192 199680 211458 216880 239616 243990 260256 266240 281944 299520 317187 319488 325320 347008 352430 368640 390384 399360 422916 433760 479232 487980 520512 528645 532480 563888 599040 634374 650640 694016 704860 780768 798720 845832 867520 958464 975960 1041024 1057290 1127776 1198080 1268748 1301280 1388032 1409720 1561536 1585935 1597440 1691664 1735040 1951920 2082048 2114580 2255552 2396160 2537496 2602560 2776064 2819440 3123072 3171870 3383328 3470080 3903840 4164096 4229160 4511104 4792320 5074992 5205120 5552128 5638880 6246144 6343740 6766656 6940160 7807680 8328192 8458320 9022208 10149984 10410240 11104256 11277760 12492288 12687480 13533312 13880320 15615360 16656384 16916640 18044416 20299968 20820480 22208512 22555520 24984576 25374960 27066624 27760640 31230720 33312768 33833280 36088832 40599936 41640960 45111040 49969152 50749920 54133248 55521280 62461440 66625536 67666560 72177664 81199872 83281920 90222080 99938304 101499840 108266496 111042560 124922880 135333120 144355328 162399744 166563840 180444160 199876608 202999680 216532992 249845760 270666240 288710656 324799488 333127680 360888320 405999360 433065984 499691520 541332480 649598976 721776640 811998720 866131968 999383040 1082664960 1299197952 1443553280 1623997440 2165329920 2598395904 3247994880 4330659840 6495989760 12991979520
• Sum of all divisors σ(n): 48518320032
• Sum of proper divisors (its aliquot sum) s(n): 35526340512
• 12991979520 is an abundant number, because the sum of its proper divisors (35526340512) is greater than itself. Its abundance is 22534360992

Bases of 12991979520

• Binary: 1100000110011000011110000000000000₂
• Hexadecimal: 0x30661E000
• Base-36: 5YV37K0

Squares and roots of 12991979520

• 12991979520 squared (12991979520²) is 168791531848099430400
• 12991979520 cubed (12991979520³) is 2192936124919935550680465408000
• The square root of 12991979520 is 113982.3649517767
• The cube root of 12991979520 is 2350.8510284247

Scales and comparisons

• 12,991,979,520 seconds is equal to 413 years, 5 weeks, 3 days, 3 hours, 12 minutes.
• To count from 1 to 12,991,979,520 would take you about eight hundred twenty-six 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 12991979520 cubic inches would be around 195.9 feet tall.

Recreational maths with 12991979520

• 12991979520 backwards is 02597919921
• The number of decimal digits it has is: 11
• The sum of 12991979520's digits is 54
• More coming soon!