12428728320

Names of 12428728320

• Cardinal: 12428728320 can be written as Twelve billion, four hundred twenty-eight million, seven hundred twenty-eight thousand, three hundred twenty.

Scientific notation

• Scientific notation: 1.242872832 × 10¹⁰

Factors of 12428728320

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 462

Divisors of 12428728320

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 32 40 48 60 62 64 80 93 96 120 124 128 155 160 186 192 240 248 256 310 320 372 384 421 465 480 496 512 620 640 744 768 842 930 960 961 992 1024 1240 1263 1280 1488 1536 1684 1860 1920 1922 1984 2048 2105 2480 2526 2560 2883 2976 3072 3368 3720 3840 3844 3968 4210 4805 4960 5052 5120 5766 5952 6144 6315 6736 7440 7680 7688 7936 8420 9610 9920 10104 10240 11532 11904 12630 13051 13472 14415 14880 15360 15376 15872 16840 19220 19840 20208 23064 23808 25260 26102 26944 28830 29760 30720 30752 31744 33680 38440 39153 39680 40416 46128 47616 50520 52204 53888 57660 59520 61504 63488 65255 67360 76880 78306 79360 80832 92256 95232 101040 104408 107776 115320 119040 123008 130510 134720 153760 156612 158720 161664 184512 190464 195765 202080 208816 215552 230640 238080 246016 261020 269440 307520 313224 317440 323328 369024 391530 404160 404581 417632 431104 461280 476160 492032 522040 538880 615040 626448 646656 738048 783060 808320 809162 835264 862208 922560 952320 984064 1044080 1077760 1213743 1230080 1252896 1293312 1476096 1566120 1616640 1618324 1670528 1845120 1968128 2022905 2088160 2155520 2427486 2460160 2505792 2586624 2952192 3132240 3233280 3236648 3341056 3690240 4045810 4176320 4311040 4854972 4920320 5011584 5904384 6068715 6264480 6466560 6473296 6682112 7380480 8091620 8352640 9709944 9840640 10023168 12137430 12528960 12933120 12946592 13364224 14760960 16183240 16705280 19419888 20046336 24274860 25057920 25893184 26728448 29521920 32366480 33410560 38839776 40092672 48549720 50115840 51786368 64732960 66821120 77679552 80185344 97099440 100231680 103572736 129465920 133642240 155359104 194198880 200463360 207145472 258931840 310718208 388397760 400926720 414290944 517863680 621436416 776795520 828581888 1035727360 1242872832 1553591040 2071454720 2485745664 3107182080 4142909440 6214364160 12428728320
• Sum of all divisors σ(n): 41183840880
• Sum of proper divisors (its aliquot sum) s(n): 28755112560
• 12428728320 is an abundant number, because the sum of its proper divisors (28755112560) is greater than itself. Its abundance is 16326384240

Bases of 12428728320

• Binary: 1011100100110011110101100000000000₂
• Hexadecimal: 0x2E4CF5800
• Base-36: 5PJQS5C

Squares and roots of 12428728320

• 12428728320 squared (12428728320²) is 154473287652370022400
• 12428728320 cubed (12428728320³) is 1919906524928517612521914368000
• The square root of 12428728320 is 111484.2065944769
• The cube root of 12428728320 is 2316.3751558627

Scales and comparisons

• 12,428,728,320 seconds is equal to 395 years, 10 weeks, 1 day, 32 minutes.
• To count from 1 to 12,428,728,320 would take you about seven hundred ninety 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 12428728320 cubic inches would be around 193 feet tall.

Recreational maths with 12428728320

• 12428728320 backwards is 02382782421
• The number of decimal digits it has is: 11
• The sum of 12428728320's digits is 39
• More coming soon!