161388293917638656

Names of 161388293917638656

• Cardinal: 161388293917638656 can be written as One hundred sixty-one quadrillion, three hundred eighty-eight trillion, two hundred ninety-three billion, nine hundred seventeen million, six hundred thirty-eight thousand, six hundred fifty-six.

Scientific notation

• Scientific notation: 1.61388293917638656 × 10¹⁷

Factors of 161388293917638656

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 25
• Sum of prime factors: 210

Divisors of 161388293917638656

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 64 88 121 128 176 197 242 256 352 394 484 512 704 788 968 1024 1331 1408 1576 1936 2048 2167 2662 2816 3152 3872 4096 4334 5324 5632 6304 7744 8192 8668 10648 11264 12608 14641 15488 16384 17336 21296 22528 23837 25216 29282 30976 32768 34672 38809 42592 45056 47674 50432 58564 61952 65536 69344 77618 85184 90112 95348 100864 117128 123904 131072 138688 155236 161051 170368 180224 190696 201728 234256 247808 262207 277376 310472 322102 340736 360448 381392 403456 426899 468512 495616 524414 554752 620944 644204 681472 720896 762784 806912 853798 937024 991232 1048828 1109504 1241888 1288408 1362944 1441792 1525568 1613824 1707596 1874048 1982464 2097656 2219008 2483776 2576816 2725888 2884277 3051136 3227648 3415192 3748096 3964928 4195312 4438016 4695889 4967552 5153632 5451776 5768554 6102272 6455296 6830384 7496192 7645373 7929856 8390624 8876032 9391778 9935104 10307264 10903552 11537108 12204544 12910592 13660768 14992384 15290746 15859712 16781248 17752064 18783556 19870208 20614528 21807104 23074216 24409088 25821184 27321536 29984768 30581492 31727047 33562496 35504128 37567112 39740416 41229056 43614208 46148432 48818176 51654779 54643072 59969536 61162984 63454094 67124992 71008256 75134224 79480832 82458112 84099103 87228416 92296864 97636352 103309558 109286144 119939072 122325968 126908188 134249984 142016512 150268448 158961664 164916224 168198206 174456832 184593728 195272704 206619116 218572288 239878144 244651936 253816376 268499968 284033024 300536896 317923328 329832448 336396412 369187456 390545408 413238232 437144576 479756288 489303872 507632752 536999936 568202569 601073792 635846656 659664896 672792824 738374912 781090816 826476464 874289152 925090133 959512576 978607744 1015265504 1073999872 1136405138 1202147584 1271693312 1319329792 1345585648 1476749824 1562181632 1652952928 1748578304 1850180266 1919025152 1957215488 2030531008 2147999744 2272810276 2404295168 2543386624 2638659584 2691171296 2953499648 3124363264 3305905856 3497156608 3700360532 3914430976 4061062016 4295999488 4545620552 4808590336 5086773248 5277319168 5382342592 5906999296 6250228259 6611811712 6994313216 7400721064 7828861952 8122124032 8591998976 9091241104 9617180672 10175991463 10554638336 10764685184 11813998592 12500456518 13223623424 13988626432 14801442128 15657723904 16244248064 17183997952 18182482208 19234361344 20351982926 21109276672 21529370368 23627997184 25000913036 26447246848 27977252864 29602884256 31315447808 32488496128 34367995904 36364964416 38468722688 40703965852 43058740736 47255994368 50001826072 52894493696 55954505728 59205768512 62630895616 64976992256 72729928832 76937445376 81407931704 86117481472 94511988736 100003652144 105788987392 111935906093 118411537024 125261791232 129953984512 145459857664 153874890752 162815863408 172234962944 189023977472 200007304288 211577974784 223871812186 236823074048 250523582464 259907969024 290919715328 307749781504 325631726816 344469925888 378047954944 400014608576 423155949568 447743624372 473646148096 501047164928 519815938048 581839430656 615499563008 651263453632 688939851776 800029217152 846311899136 895487248744 947292296192 1002094329856 1039631876096 1163678861312 1231294967023 1302526907264 1377879703552 1600058434304 1692623798272 1790974497488 1894584592384 2079263752192 2327357722624 2462589934046 2605053814528 2755759407104 3200116868608 3385247596544 3581948994976 3789169184768 4158527504384 4654715445248 4925179868092 5210107629056 5511518814208 6400233737216 6770495193088 7163897989952 7578338369536 9309430890496 9850359736184 10420215258112 11023037628416 12800467474432 14327795979904 15156676739072 18618861780992 19700719472368 20840430516224 25600934948864 28655591959808 30313353478144 37237723561984 39401438944736 41680861032448 51201869897728 57311183919616 60626706956288 74475447123968 78802877889472 83361722064896 102403739795456 114622367839232 121253413912576 157605755778944 166723444129792 204807479590912 229244735678464 315211511557888 333446888259584 409614959181824 458489471356928 630423023115776 666893776519168 819229918363648 916978942713856 1260846046231552 1333787553038336 1833957885427712 2521692092463104 3667915770855424 5043384184926208 7335831541710848 10086768369852416 14671663083421696 20173536739704832 40347073479409664 80694146958819328 161388293917638656
• Sum of all divisors σ(n): 356864184864689040
• Sum of proper divisors (its aliquot sum) s(n): 195475890947050384
• 161388293917638656 is an abundant number, because the sum of its proper divisors (195475890947050384) is greater than itself. Its abundance is 34087597029411728

Bases of 161388293917638656

• Binary: 1000111101010111011100110001011001110111100000000000000000₂
• Hexadecimal: 0x23D5DCC59DE0000
• Base-36: 1853DIP8AN7K

Squares and roots of 161388293917638656

• 161388293917638656 squared (161388293917638656²) is 26046181413646122407369118985486336
• 161388293917638656 cubed (161388293917638656³) is 4203548781417657507744760559491214383610212873404416
• The square root of 161388293917638656 is 401731619.2654477329
• The cube root of 161388293917638656 is 544449.1743244643

Scales and comparisons

• 161,388,293,917,638,656 seconds is equal to 5,131,648,539 years, 42 weeks, 1 day, 4 hours, 30 minutes, 56 seconds.
• To count from 1 to 161,388,293,917,638,656 would take you about fifteen billion, three hundred ninety-four million, nine hundred forty-five thousand, six hundred nineteen 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 161388293917638656 cubic inches would be around 45370.8 feet tall.

Recreational maths with 161388293917638656

• 161388293917638656 backwards is 656836719392883161
• The number of decimal digits it has is: 18
• The sum of 161388293917638656's digits is 92
• More coming soon!