642453344654223168

Names of 642453344654223168

• Cardinal: 642453344654223168 can be written as Six hundred forty-two quadrillion, four hundred fifty-three trillion, three hundred forty-four billion, six hundred fifty-four million, two hundred twenty-three thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 6.42453344654223168 × 10¹⁷

Factors of 642453344654223168

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 220909168190

Divisors of 642453344654223168

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 17 18 22 24 27 32 33 34 36 44 48 51 54 64 66 68 72 81 88 96 99 102 108 132 136 144 153 162 176 187 192 198 204 216 243 264 272 288 297 306 324 352 374 396 408 432 459 486 528 544 561 576 594 612 648 704 748 792 816 864 891 918 972 1056 1088 1122 1188 1224 1296 1377 1496 1584 1632 1683 1728 1782 1836 1944 2112 2244 2376 2448 2592 2673 2754 2992 3168 3264 3366 3564 3672 3888 4131 4488 4752 4896 5049 5184 5346 5508 5984 6336 6732 7128 7344 7776 8262 8976 9504 9792 10098 10692 11016 11968 13464 14256 14688 15147 15552 16524 17952 19008 20196 21384 22032 26928 28512 29376 30294 33048 35904 40392 42768 44064 45441 53856 57024 60588 66096 80784 85536 88128 90882 107712 121176 132192 161568 171072 181764 242352 264384 323136 363528 484704 727056 969408 1454112 2908224 220909168157 441818336314 662727504471 883636672628 1325455008942 1767273345256 1988182513413 2430000849727 2650910017884 3534546690512 3755455858669 3976365026826 4860001699454 5301820035768 5964547540239 7069093381024 7290002549181 7510911717338 7952730053652 9720003398908 10603640071536 11266367576007 11929095080478 14138186762048 14580005098362 15021823434676 15905460107304 17893642620717 19440006797816 21207280143072 21870007647543 22532735152014 23858190160956 29160010196724 30043646869352 31810920214608 33799102728021 35787285241434 38880013595632 41310014445359 42414560286144 43740015295086 45065470304028 47716380321912 53680927862151 58320020393448 60087293738704 63621840429216 65610022942629 67598205456042 71574570482868 77760027191264 82620028890718 87480030590172 90130940608056 95432760643824 101397308184063 107361855724302 116640040786896 120174587477408 123930043336077 127243680858432 131220045885258 135196410912084 143149140965736 155520054382528 165240057781436 174960061180344 180261881216112 190865521287648 196830068827887 202794616368126 214723711448604 233280081573792 240349174954816 247860086672154 262440091770516 270392821824168 286298281931472 304191924552189 330480115562872 349920122360688 360523762432224 371790130008231 381731042575296 393660137655774 405589232736252 429447422897208 466560163147584 495720173344308 524880183541032 540785643648336 572596563862944 590490206483661 608383849104378 660960231125744 699840244721376 721047524864448 743580260016462 787320275311548 811178465472504 858894845794416 912575773656567 991440346688616 1049760367082064 1081571287296672 1115370390024693 1145193127725888 1180980412967322 1216767698208756 1321920462251488 1399680489442752 1487160520032924 1574640550623096 1622356930945008 1717789691588832 1825151547313134 1982880693377232 2099520734164128 2163142574593344 2230740780049386 2361960825934644 2433535396417512 2643840924502976 2974321040065848 3149281101246192 3244713861890016 3346111170074079 3435579383177664 3650303094626268 3965761386754464 4199041468328256 4461481560098772 4723921651869288 4867070792835024 5948642080131696 6298562202492384 6489427723780032 6692222340148158 7300606189252536 7931522773508928 8922963120197544 9447843303738576 9734141585670048 10038333510222237 11897284160263392 12597124404984768 13384444680296316 14601212378505072 17845926240395088 18895686607477152 19468283171340096 20076667020444474 23794568320526784 26768889360592632 29202424757010144 35691852480790176 37791373214954304 40153334040888948 53537778721185264 58404849514020288 71383704961580352 80306668081777896 107075557442370528 160613336163555792 214151114884741056 321226672327111584 642453344654223168
• Sum of all divisors σ(n): 2205832829531333184
• Sum of proper divisors (its aliquot sum) s(n): 1563379484877110016
• 642453344654223168 is an abundant number, because the sum of its proper divisors (1563379484877110016) is greater than itself. Its abundance is 920926140222886848

Bases of 642453344654223168

• Binary: 100011101010011100111110100111000000111000000110011101000000₂
• Hexadecimal: 0x8EA73E9C0E06740
• Base-36: 4VPUPC3DBO00

Squares and roots of 642453344654223168

• 642453344654223168 squared (642453344654223168²) is 412746300057398060435755537547956224
• 642453344654223168 cubed (642453344654223168³) is 265170240965530967869894783199537484722579928790597632
• The square root of 642453344654223168 is 801531873.7606279173
• The cube root of 642453344654223168 is 862873.6325461051

Scales and comparisons

• 642,453,344,654,223,168 seconds is equal to 20,428,029,121 years, 17 weeks, 1 day, 14 hours, 52 minutes, 48 seconds.
• To count from 1 to 642,453,344,654,223,168 would take you about sixty-one billion, two hundred eighty-four million, eighty-seven thousand, three hundred sixty-three 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 642453344654223168 cubic inches would be around 71906.1 feet tall.

Recreational maths with 642453344654223168

• 642453344654223168 backwards is 861322456443354246
• 642453344654223168 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 642453344654223168's digits is 72
• More coming soon!