642291239317031808

Names of 642291239317031808

• Cardinal: 642291239317031808 can be written as Six hundred forty-two quadrillion, two hundred ninety-one trillion, two hundred thirty-nine billion, three hundred seventeen million, thirty-one thousand, eight hundred eight.

Scientific notation

• Scientific notation: 6.42291239317031808 × 10¹⁷

Factors of 642291239317031808

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 118115488746

Divisors of 642291239317031808

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 17 21 24 28 32 34 42 48 49 51 56 64 68 84 96 98 102 112 119 128 136 147 168 192 196 204 224 238 272 289 294 336 357 384 392 408 448 476 544 578 588 672 714 784 816 833 867 896 952 1088 1156 1176 1344 1428 1568 1632 1666 1734 1904 2023 2176 2312 2352 2499 2688 2856 3136 3264 3332 3468 3808 4046 4624 4704 4998 5712 6069 6272 6528 6664 6936 7616 8092 9248 9408 9996 11424 12138 13328 13872 14161 15232 16184 18496 18816 19992 22848 24276 26656 27744 28322 32368 36992 39984 42483 45696 48552 53312 55488 56644 64736 79968 84966 97104 106624 110976 113288 129472 159936 169932 194208 226576 258944 319872 339864 388416 453152 679728 776832 906304 1359456 1812608 2718912 5437824 118115488717 236230977434 354346466151 472461954868 708692932302 826808421019 944923909736 1417385864604 1653616842038 1889847819472 2007963308189 2480425263057 2834771729208 3307233684076 3779695638944 4015926616378 4960850526114 5669543458416 5787658947133 6023889924567 6614467368152 7559391277888 8031853232756 9921701052228 11339086916832 11575317894266 12047779849134 13228934736304 14055743157323 15118782555776 16063706465512 17362976841399 19843402104456 22678173833664 23150635788532 24095559698268 26457869472608 28111486314646 32127412931024 34135376239213 34725953682798 39686804208912 42167229471969 45356347667328 46301271577064 48191119396536 52915738945216 56222972629292 64254825862048 68270752478426 69451907365596 79373608417824 84334458943938 92602543154128 96382238793072 98390202101261 102406128717639 105831477890432 112445945258584 128509651724096 136541504956852 138903814731192 158747216835648 168668917887876 185205086308256 192764477586144 196780404202522 204812257435278 224891890517168 238947633674491 257019303448192 273083009913704 277807629462384 295170606303783 317494433671296 337337835775752 370410172616512 385528955172288 393560808405044 409624514870556 449783781034336 477895267348982 546166019827408 555615258924768 590341212607566 674675671551504 716842901023473 740820345233024 771057910344576 787121616810088 819249029741112 899567562068672 955790534697964 1092332039654816 1111230517849536 1180682425215132 1349351343103008 1433685802046946 1574243233620176 1638498059482224 1672633435721437 1799135124137344 1911581069395928 2184664079309632 2222461035699072 2361364850430264 2698702686206016 2867371604093892 3148486467240352 3276996118964448 3345266871442874 3823162138791856 4369328158619264 4722729700860528 5017900307164311 5397405372412032 5734743208187784 6296972934480704 6553992237928896 6690533742885748 7646324277583712 9445459401721056 10035800614328622 11469486416375568 12593945868961408 13107984475857792 13381067485771496 15292648555167424 18890918803442112 20071601228657244 22938972832751136 26762134971542992 30585297110334848 37781837606884224 40143202457314488 45877945665502272 53524269943085984 80286404914628976 91755891331004544 107048539886171968 160572809829257952 214097079772343936 321145619658515904 642291239317031808
• Sum of all divisors σ(n): 2108240995817807640
• Sum of proper divisors (its aliquot sum) s(n): 1465949756500775832
• 642291239317031808 is an abundant number, because the sum of its proper divisors (1465949756500775832) is greater than itself. Its abundance is 823658517183744024

Bases of 642291239317031808

• Binary: 100011101001111000000111101010101001110101100100101110000000₂
• Hexadecimal: 0x8E9E07AA9D64B80
• Base-36: 4VO98PXGZUYO

Squares and roots of 642291239317031808

• 642291239317031808 squared (642291239317031808²) is 412538036103408626625969391283748864
• 642291239317031808 cubed (642291239317031808³) is 264969566474272738373515181765742874294748839371866112
• The square root of 642291239317031808 is 801430745.1782916271
• The cube root of 642291239317031808 is 862801.0523405435

Scales and comparisons

• 642,291,239,317,031,808 seconds is equal to 20,422,874,673 years, 1 week, 5 days, 3 hours, 56 minutes, 48 seconds.
• To count from 1 to 642,291,239,317,031,808 would take you about sixty-one billion, two hundred sixty-eight million, six hundred twenty-four thousand and 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 642291239317031808 cubic inches would be around 71900.1 feet tall.

Recreational maths with 642291239317031808

• 642291239317031808 backwards is 808130713932192246
• The number of decimal digits it has is: 18
• The sum of 642291239317031808's digits is 69
• More coming soon!