1638927853921980

Names of 1638927853921980

• Cardinal: 1638927853921980 can be written as One quadrillion, six hundred thirty-eight trillion, nine hundred twenty-seven billion, eight hundred fifty-three million, nine hundred twenty-one thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 1.63892785392198 × 10¹⁵

Factors of 1638927853921980

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1359

Divisors of 1638927853921980

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 17 18 20 27 30 34 36 45 51 54 60 68 85 90 102 108 135 153 170 180 204 255 270 306 340 459 510 521 540 612 765 811 918 1020 1042 1530 1563 1622 1836 2084 2295 2433 2605 3060 3126 3244 4055 4590 4689 4866 5210 6252 7299 7815 8110 8857 9180 9378 9732 10420 12165 13787 14067 14598 15630 16220 17714 18756 21897 23445 24330 26571 27574 28134 29196 31260 35428 36495 41361 43794 44285 46890 48660 53142 55148 56268 68935 70335 72990 79713 82722 87588 88570 93780 106284 109485 124083 132855 137870 140670 145980 159426 165444 177140 206805 218970 239139 248166 265710 271441 275740 281340 318852 372249 398565 413610 422531 437940 478278 496332 531420 542882 620415 657721 744498 797130 814323 827220 845062 956556 1085764 1195695 1240830 1267593 1315442 1357205 1488996 1594260 1628646 1690124 1861245 1973163 2112655 2391390 2442969 2481660 2535186 2630884 2714410 3257292 3288605 3722490 3802779 3946326 4071615 4225310 4614497 4782780 4885938 5070372 5428820 5919489 6337965 6577210 7183027 7328907 7444980 7605558 7892652 8143230 8450620 9228994 9771876 9865815 11181257 11408337 11838978 12214845 12675930 13154420 13843491 14366054 14657814 15211116 16286460 17758467 18457988 19013895 19731630 21549081 22362514 22816674 23072485 23677956 24429690 25351860 27686982 28732108 29315628 29597445 33543771 35516934 35915135 36644535 38027790 39463260 41530473 43098162 44725028 45633348 46144970 48859380 55373964 55906285 57041685 59194890 64647243 67087542 69217455 71033868 71830270 73289070 76055580 83060946 86196324 88792335 92289940 100631313 107745405 111812570 114083370 118389780 124591419 129294486 134175084 138434910 143660540 146578140 166121892 167718855 177584670 193941729 201262626 207652365 215490810 220138651 223625140 228166740 249182838 258588972 276869820 301893939 323236215 335437710 342672641 355169340 387883458 402525252 415304730 430981620 440277302 498365676 503156565 603787878 622957095 646472430 660415953 670875420 685345282 775766916 830609460 880554604 969708645 1006313130 1028017923 1100693255 1207575756 1245914190 1292944860 1320831906 1370690564 1509469695 1713363205 1939417290 1981247859 2012626260 2056035846 2201386510 2491828380 2641663812 3018939390 3084053769 3302079765 3426726410 3742357067 3878834580 3962495718 4112071692 4402773020 5140089615 5825434897 5943743577 6037878780 6168107538 6604159530 6853452820 7484714134 7924991436 9252161307 9906239295 10280179230 11227071201 11650869794 11887487154 12336215076 13208319060 14969428268 15420268845 17476304691 18504322614 18711785335 19812478590 20560358460 22454142402 23301739588 23774974308 29127174485 29718717885 30840537690 33681213603 34952609382 37008645228 37423570670 39624957180 44908284804 46260806535 52428914073 56135356005 58254348970 59437435770 61681075380 67362427206 69905218764 74847141340 87381523455 92521613070 101043640809 104857828146 112270712010 116508697940 118874871540 134724854412 157286742219 168406068015 174763046910 178532445961 185043226140 202087281618 209715656292 224541424020 262144570365 314573484438 336812136030 349526093820 357064891922 404174563236 505218204045 524289140730 535597337883 629146968876 673624272060 714129783844 786433711095 892662229805 1010436408090 1048578281460 1071194675766 1572867422190 1606792013649 1785324459610 2020872816180 2142389351532 2677986689415 3035051581337 3145734844380 3213584027298 3570648919220 4820376040947 5355973378830 6070103162674 6427168054596 8033960068245 9105154744011 9640752081894 10711946757660 12140206325348 15175257906685 16067920136490 18210309488022 19281504163788 24101880204735 27315464232033 30350515813370 32135840272980 36420618976044 45525773720055 48203760409470 54630928464066 60701031626740 81946392696099 91051547440110 96407520818940 109261856928132 136577321160165 163892785392198 182103094880220 273154642320330 327785570784396 409731963480495 546309284640660 819463926960990 1638927853921980
• Sum of all divisors σ(n): 5415881494836960
• Sum of proper divisors (its aliquot sum) s(n): 3776953640914980
• 1638927853921980 is an abundant number, because the sum of its proper divisors (3776953640914980) is greater than itself. Its abundance is 2138025786993000

Bases of 1638927853921980

• Binary: 101110100101001100010100000100010111010011010111100₂
• Hexadecimal: 0x5D298A08BA6BC
• Base-36: G4Y928D130

Squares and roots of 1638927853921980

• 1638927853921980 squared (1638927853921980²) is 2686084510361307013667927120400
• 1638927853921980 cubed (1638927853921980³) is 4402298722019529355047535290859199947666392000
• The square root of 1638927853921980 is 40483673.9182843927
• The cube root of 1638927853921980 is 117901.6669517695

Scales and comparisons

• 1,638,927,853,921,980 seconds is equal to 52,112,836 years, 11 weeks, 2 days, 8 hours, 33 minutes.
• To count from 1 to 1,638,927,853,921,980 would take you about one hundred fifty-six million, three hundred thirty-eight thousand, five hundred eight 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 1638927853921980 cubic inches would be around 9825.1 feet tall.

Recreational maths with 1638927853921980

• 1638927853921980 backwards is 0891293587298361
• The number of decimal digits it has is: 16
• The sum of 1638927853921980's digits is 81
• More coming soon!