12728264640

Names of 12728264640

• Cardinal: 12728264640 can be written as Twelve billion, seven hundred twenty-eight million, two hundred sixty-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.272826464 × 10¹⁰

Factors of 12728264640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 794

Divisors of 12728264640

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 26 28 30 32 35 39 40 42 48 52 56 60 64 65 70 78 80 84 91 96 104 105 112 120 130 140 156 160 168 182 192 195 208 210 224 240 260 273 280 312 320 336 364 367 390 397 416 420 448 455 480 520 546 560 624 672 728 734 780 794 832 840 910 960 1040 1092 1101 1120 1191 1248 1344 1365 1456 1468 1560 1588 1680 1820 1835 1985 2080 2184 2202 2240 2382 2496 2569 2730 2779 2912 2936 3120 3176 3360 3640 3670 3970 4160 4368 4404 4764 4771 5138 5161 5460 5505 5558 5824 5872 5955 6240 6352 6720 7280 7340 7707 7940 8337 8736 8808 9528 9542 10276 10322 10920 11010 11116 11744 11910 12480 12704 12845 13895 14313 14560 14680 15414 15483 15880 16674 17472 17616 19056 19084 20552 20644 21840 22020 22232 23488 23820 23855 25408 25690 25805 27790 28626 29120 29360 30828 30966 31760 33348 33397 35232 36127 38112 38168 38535 41104 41288 41685 43680 44040 44464 47640 47710 51380 51610 55580 57252 58720 61656 61932 63520 66696 66794 70464 71565 72254 76224 76336 77070 77415 82208 82576 83370 87360 88080 88928 95280 95420 100191 102760 103220 108381 111160 114504 117440 123312 123864 127040 133392 133588 143130 144508 145699 152672 154140 154830 164416 165152 166740 166985 176160 177856 180635 190560 190840 200382 205520 206440 216762 222320 229008 246624 247728 266784 267176 286260 289016 291398 305344 308280 309660 330304 333480 333970 352320 361270 381120 381680 400764 411040 412880 433524 437097 444640 458016 493248 495456 500955 533568 534352 541905 572520 578032 582796 616560 619320 666960 667940 722540 728495 763360 801528 822080 825760 867048 874194 889280 916032 990912 1001910 1019893 1068704 1083810 1145040 1156064 1165592 1233120 1238640 1333920 1335880 1445080 1456990 1526720 1603056 1651520 1734096 1748388 1894087 2003820 2039786 2137408 2167620 2185485 2290080 2312128 2331184 2466240 2477280 2667840 2671760 2890160 2913980 3059679 3206112 3468192 3496776 3788174 4007640 4079572 4335240 4370970 4580160 4662368 4954560 5099465 5343520 5682261 5780320 5827960 6119358 6412224 6936384 6993552 7576348 8015280 8159144 8670480 8741940 9324736 9470435 10198930 10687040 11364522 11560640 11655920 12238716 13258609 13987104 15152696 15298395 16030560 16318288 17340960 17483880 18940870 20397860 22729044 23311840 24477432 26517218 27974208 28411305 30305392 30596790 32061120 32636576 34681920 34967760 37881740 39775827 40795720 45458088 46623680 48954864 53034436 56822610 60610784 61193580 65273152 66293045 69935520 75763480 79551654 81591440 90916176 97909728 106068872 113645220 121221568 122387160 132586090 139871040 151526960 159103308 163182880 181832352 195819456 198879135 212137744 227290440 244774320 265172180 303053920 318206616 326365760 363664704 397758270 424275488 454580880 489548640 530344360 606107840 636413232 795516540 848550976 909161760 979097280 1060688720 1272826464 1591033080 1818323520 2121377440 2545652928 3182066160 4242754880 6364132320 12728264640
• Sum of all divisors σ(n): 49999294464
• Sum of proper divisors (its aliquot sum) s(n): 37271029824
• 12728264640 is an abundant number, because the sum of its proper divisors (37271029824) is greater than itself. Its abundance is 24542765184

Bases of 12728264640

• Binary: 1011110110101010011110011111000000₂
• Hexadecimal: 0x2F6A9E7C0
• Base-36: 5UI2VUO

Squares and roots of 12728264640

• 12728264640 squared (12728264640²) is 162008720745874329600
• 12728264640 cubed (12728264640³) is 2062089871641346655331385344000
• The square root of 12728264640 is 112819.6110611981
• The cube root of 12728264640 is 2334.8360960779

Scales and comparisons

• 12,728,264,640 seconds is equal to 404 years, 37 weeks, 2 days, 21 hours, 4 minutes.
• To count from 1 to 12,728,264,640 would take you about eight hundred nine 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 12728264640 cubic inches would be around 194.6 feet tall.

Recreational maths with 12728264640

• 12728264640 backwards is 04646282721
• 12728264640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12728264640's digits is 42
• More coming soon!