138655972672

Names of 138655972672

• Cardinal: 138655972672 can be written as One hundred thirty-eight billion, six hundred fifty-five million, nine hundred seventy-two thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.38655972672 × 10¹¹

Factors of 138655972672

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 933

Divisors of 138655972672

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 4 7 8 14 16 28 31 32 41 43 49 56 62 64 82 86 98 112 124 164 172 196 217 224 248 287 301 328 344 392 434 448 496 574 602 656 688 784 809 868 992 1148 1204 1271 1312 1333 1376 1519 1568 1618 1736 1763 1984 2009 2107 2296 2408 2542 2624 2666 2752 3038 3136 3236 3472 3526 4018 4214 4592 4816 5084 5332 5663 6076 6472 6944 7052 8036 8428 8897 9184 9331 9632 10168 10664 11326 12152 12341 12944 13888 14104 16072 16856 17794 18368 18662 19264 20336 21328 22652 24304 24682 25079 25888 28208 32144 33169 33712 34787 35588 37324 39641 40672 42656 45304 48608 49364 50158 51776 54653 56416 62279 64288 65317 66338 67424 69574 71176 74648 79282 81344 85312 86387 90608 97216 98728 100316 109306 112832 124558 128576 130634 132676 134848 139148 142352 149296 158564 172774 175553 181216 197456 200632 218612 232183 243509 249116 261268 265352 278296 284704 298592 317128 345548 351106 362432 382571 394912 401264 437224 464366 487018 498232 522536 530704 556592 569408 597184 634256 691096 702212 765142 789824 802528 874448 928732 974036 996464 1028239 1045072 1061408 1078397 1113184 1228871 1268512 1382192 1404424 1426267 1530284 1605056 1625281 1704563 1748896 1857464 1948072 1992928 2056478 2090144 2122816 2156794 2226368 2457742 2537024 2677997 2764384 2808848 2852534 3060568 3250562 3409126 3497792 3714928 3896144 3985856 4112956 4180288 4313588 4915484 5355994 5528768 5617696 5705068 6121136 6501124 6818252 7197673 7429856 7548779 7792288 8225912 8627176 9830968 9983869 10711988 11235392 11410136 12242272 13002248 13636504 14395346 14859712 15097558 15584576 16451824 17254352 19661936 19967738 21423976 22820272 24484544 26004496 27273008 28790692 30195116 32903648 34508704 39323872 39935476 42847952 44214277 45640544 50383711 52008992 52841453 54546016 57581384 60390232 65807296 69017408 69887083 78647744 79870952 85695904 88428554 91281088 100767422 104017984 105682906 109092032 115162768 120780464 139774166 159741904 171391808 176857108 201534844 211365812 230325536 241560928 279548332 309499939 319483808 353714216 403069688 422731624 460651072 483121856 559096664 618999878 638967616 707428432 806139376 845463248 1118193328 1237999756 1414856864 1612278752 1690926496 2166499573 2236386656 2475999512 2829713728 3224557504 3381852992 4332999146 4472773312 4951999024 8665998292 9903998048 17331996584 19807996096 34663993168 69327986336 138655972672
• Sum of all divisors σ(n): 346749258240
• Sum of proper divisors (its aliquot sum) s(n): 208093285568
• 138655972672 is an abundant number, because the sum of its proper divisors (208093285568) is greater than itself. Its abundance is 69437312896

Bases of 138655972672

• Binary: 10000001001000100010100011110101000000₂
• Hexadecimal: 0x20488A3D40
• Base-36: 1RP46P8G

Squares and roots of 138655972672

• 138655972672 squared (138655972672²) is 19225478757618410819584
• 138655972672 cubed (138655972672³) is 2665727457222454882404308226408448
• The square root of 138655972672 is 372365.3752324455
• The cube root of 138655972672 is 5175.8243241405

Scales and comparisons

• 138,655,972,672 seconds is equal to 4,408 years, 43 weeks, 1 day, 11 hours, 57 minutes, 52 seconds.
• To count from 1 to 138,655,972,672 would take you about eight thousand, eight hundred seventeen 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 138655972672 cubic inches would be around 431.3 feet tall.

Recreational maths with 138655972672

• 138655972672 backwards is 276279556831
• The number of decimal digits it has is: 12
• The sum of 138655972672's digits is 61
• More coming soon!