15642407749968

Names of 15642407749968

• Cardinal: 15642407749968 can be written as Fifteen trillion, six hundred forty-two billion, four hundred seven million, seven hundred forty-nine thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 1.5642407749968 × 10¹³

Factors of 15642407749968

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 355

Divisors of 15642407749968

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 79 108 144 158 216 237 271 316 432 474 542 632 711 813 948 1084 1264 1422 1626 1896 2133 2168 2439 2844 3252 3792 4266 4336 4878 5688 6241 6504 7317 8532 9756 11376 12482 13008 14634 17064 18723 19512 21409 24964 29268 34128 37446 39024 42818 49928 56169 58536 64227 73441 74892 85636 99856 112338 117072 128454 146882 149784 168507 171272 192681 220323 224676 256908 293764 299568 337014 342544 385362 440646 449352 493039 513816 578043 587528 660969 674028 770724 881292 898704 986078 1027632 1156086 1175056 1321938 1348056 1479117 1541448 1691311 1762584 1972156 1982907 2312172 2643876 2696112 2958234 3082896 3382622 3525168 3944312 3965814 4437351 4624344 5073933 5287752 5801839 5916468 6765244 7888624 7931628 8874702 9248688 10147866 10575504 11603678 11832936 13312053 13530488 15221799 15863256 17405517 17749404 20295732 23207356 23665872 26624106 27060976 30443598 31726512 34811034 35498808 40591464 45665397 46414712 52216551 53248212 60887196 69622068 70997616 81182928 91330794 92829424 104433102 106496424 121774392 133613569 139244136 156649653 182661588 208866204 212992848 243548784 267227138 278488272 313299306 365323176 400840707 417732408 458345281 534454276 626598612 730646352 801681414 835464816 916690562 1068908552 1202522121 1253197224 1375035843 1603362828 1833381124 2137817104 2405044242 2506394448 2750071686 3206725656 3607566363 3666762248 4125107529 4810088484 5500143372 6413451312 7215132726 7333524496 8250215058 9620176968 11000286744 12375322587 14430265452 16500430116 19240353936 22000573488 24750645174 28860530904 33000860232 36209277199 49501290348 57721061808 66001720464 72418554398 99002580696 108627831597 144837108796 198005161392 217255663194 289674217592 325883494791 434511326388 579348435184 651766989582 869022652776 977650484373 1303533979164 1738045305552 1955300968746 2607067958328 3910601937492 5214135916656 7821203874984 15642407749968
• Sum of all divisors σ(n): 45643561363200
• Sum of proper divisors (its aliquot sum) s(n): 30001153613232
• 15642407749968 is an abundant number, because the sum of its proper divisors (30001153613232) is greater than itself. Its abundance is 14358745863264

Bases of 15642407749968

• Binary: 11100011101000001000001010000100100101010000₂
• Hexadecimal: 0xE3A08284950
• Base-36: 5JM0TP6C0

Squares and roots of 15642407749968

• 15642407749968 squared (15642407749968²) is 244684920216258948404001024
• 15642407749968 cubed (15642407749968³) is 3827461292291110733074675462476607967232
• The square root of 15642407749968 is 3955048.3878162603
• The cube root of 15642407749968 is 25009.2806876435

Scales and comparisons

• 15,642,407,749,968 seconds is equal to 497,380 years, 9 weeks, 2 days, 23 hours, 52 minutes, 48 seconds.
• To count from 1 to 15,642,407,749,968 would take you about one million, two hundred forty-three thousand, four hundred fifty 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 15642407749968 cubic inches would be around 2084.1 feet tall.

Recreational maths with 15642407749968

• 15642407749968 backwards is 86994770424651
• 15642407749968 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 15642407749968's digits is 72
• More coming soon!