1643910643349520

Names of 1643910643349520

• Cardinal: 1643910643349520 can be written as One quadrillion, six hundred forty-three trillion, nine hundred ten billion, six hundred forty-three million, three hundred forty-nine thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.64391064334952 × 10¹⁵

Factors of 1643910643349520

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2428085024

Divisors of 1643910643349520

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 26 28 30 31 35 39 40 42 48 52 56 60 62 65 70 78 80 84 91 93 104 105 112 120 124 130 140 155 156 168 182 186 195 208 210 217 240 248 260 273 280 310 312 336 364 372 390 403 420 434 455 465 496 520 546 560 620 624 651 728 744 780 806 840 868 910 930 1040 1085 1092 1209 1240 1302 1365 1456 1488 1560 1612 1680 1736 1820 1860 2015 2170 2184 2418 2480 2604 2730 2821 3120 3224 3255 3472 3640 3720 4030 4340 4368 4836 5208 5460 5642 6045 6448 6510 7280 7440 8060 8463 8680 9672 10416 10920 11284 12090 13020 14105 16120 16926 17360 19344 21840 22568 24180 26040 28210 32240 33852 42315 45136 48360 52080 56420 67704 84630 96720 112840 135408 169260 225680 338520 677040 2428084963 4856169926 7284254889 9712339852 12140424815 14568509778 16996594741 19424679704 24280849630 29137019556 31565104519 33993189482 36421274445 38849359408 48561699260 50989784223 58274039112 63130209038 67986378964 72842548890 75270633853 84982973705 94695313557 97123398520 101979568446 116548078224 126260418076 135972757928 145685097780 150541267706 157825522595 169965947410 189390627114 194246797040 203959136892 220955731633 225811901559 252520836152 254948921115 271945515856 291370195560 301082535412 315651045190 339931894820 376353169265 378781254228 407918273784 441911463266 451623803118 473476567785 505041672304 509897842230 526894436971 582740391120 602165070824 631302090380 662867194899 679863789640 752706338530 757562508456 815836547568 883822926532 903247606236 946953135570 978518240089 1019795684460 1053788873942 1104778658165 1129059507795 1204330141648 1262604180760 1325734389798 1359727579280 1505412677060 1515125016912 1580683310913 1767645853064 1806495212472 1893906271140 1957036480178 2039591368920 2107577747884 2209557316330 2258119015590 2525208361520 2634472184855 2651468779596 2935554720267 3010825354120 3161366621826 3314335974495 3535291706128 3612990424944 3787812542280 3914072960356 4079182737840 4215155495768 4419114632660 4516238031180 4892591200445 5268944369710 5302937559192 5871109440534 6021650708240 6322733243652 6628671948990 6849627680623 7575625084560 7828145920712 7903416554565 8430310991536 8838229265320 9032476062360 9785182400890 10537888739420 10605875118384 11742218881068 12645466487304 13257343897980 13699255361246 14677773601335 15656291841424 15806833109130 17676458530640 18064952124720 19570364801780 20548883041869 21075777478840 23484437762136 25290932974608 26514687795960 27398510722492 29355547202670 31613666218260 34248138403115 39140729603560 41097766083738 42151554957680 46968875524272 53029375591920 54797021444984 58711094405340 63227332436520 68496276806230 78281459207120 82195532167476 102744415209345 109594042889968 117422188810680 126454664873040 136992553612460 164391064334952 205488830418690 234844377621360 273985107224920 328782128669904 410977660837380 547970214449840 821955321674760 1643910643349520
• Sum of all divisors σ(n): 6474478844166144
• Sum of proper divisors (its aliquot sum) s(n): 4830568200816624
• 1643910643349520 is an abundant number, because the sum of its proper divisors (4830568200816624) is greater than itself. Its abundance is 3186657557467104

Bases of 1643910643349520

• Binary: 101110101110010000011000101111100000111100000010000₂
• Hexadecimal: 0x5D720C5F07810
• Base-36: G6PU4GJ9QO

Squares and roots of 1643910643349520

• 1643910643349520 squared (1643910643349520²) is 2702442203317832745004884230400
• 1643910643349520 cubed (1643910643349520³) is 4442573501071112760111083174371531283409408000
• The square root of 1643910643349520 is 40545167.9408227387
• The cube root of 1643910643349520 is 118021.0305173841

Scales and comparisons

• 1,643,910,643,349,520 seconds is equal to 52,271,273 years, 26 weeks, 3 days, 6 hours, 52 minutes.
• To count from 1 to 1,643,910,643,349,520 would take you about one hundred fifty-six million, eight hundred thirteen thousand, eight hundred twenty 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 1643910643349520 cubic inches would be around 9835.1 feet tall.

Recreational maths with 1643910643349520

• 1643910643349520 backwards is 0259433460193461
• 1643910643349520 is a Harshad number.
• The number of decimal digits it has is: 16
• The sum of 1643910643349520's digits is 60
• More coming soon!