138420999865890

Names of 138420999865890

• Cardinal: 138420999865890 can be written as One hundred thirty-eight trillion, four hundred twenty billion, nine hundred ninety-nine million, eight hundred sixty-five thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.3842099986589 × 10¹⁴

Factors of 138420999865890

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 410

Divisors of 138420999865890

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 29 30 35 42 45 49 58 63 70 87 90 98 105 126 145 147 167 174 197 203 210 245 261 290 294 315 334 394 406 435 441 490 501 522 591 609 630 735 835 870 882 985 1002 1015 1169 1182 1218 1305 1379 1421 1470 1503 1670 1773 1827 1970 2030 2205 2338 2505 2610 2758 2842 2955 3006 3045 3507 3546 3654 4137 4263 4410 4843 5010 5713 5845 5910 6090 6895 7014 7105 7515 8183 8274 8526 8865 9135 9653 9686 10521 11426 11690 12411 12789 13790 14210 14529 15030 16366 17139 17535 17730 18270 19306 20685 21042 21315 24215 24549 24822 25578 27889 28565 28959 29058 32899 33901 34278 35070 38809 39991 40915 41370 42630 43587 48265 48430 49098 51417 52605 55778 57130 57918 62055 63945 65798 67802 72645 73647 77618 79982 81830 83667 85695 86877 87174 96530 98697 101703 102834 105210 116427 119973 122745 124110 127890 139445 144795 145290 147294 164495 167334 169505 171390 173754 194045 195223 197394 199955 203406 217935 230293 232854 237307 239946 245490 251001 257085 271663 278890 279937 289590 296091 305109 328990 339010 349281 359919 368235 388090 390446 399910 418335 434385 435870 460586 474614 493485 502002 508515 514170 543326 559874 582135 585669 592182 599865 610218 690879 698562 711921 719838 736470 808781 814989 836670 839811 868770 954071 976115 986970 1017030 1125461 1151465 1164270 1171338 1186535 1199730 1255005 1358315 1366561 1381758 1399685 1423842 1480455 1525545 1612051 1617562 1629978 1679622 1746405 1757007 1799595 1901641 1908142 1952230 2072637 2135763 2250922 2302930 2373070 2426343 2444967 2510010 2519433 2716630 2733122 2799370 2862213 2928345 2960910 3051090 3224102 3376383 3454395 3492810 3514014 3559605 3599190 3803282 4043905 4074945 4099683 4145274 4199055 4271526 4770355 4836153 4852686 4889934 5038866 5494133 5627305 5661467 5704923 5724426 5856690 6481103 6678497 6752766 6832805 6908790 7119210 7279029 7878227 8060255 8087810 8149890 8199366 8398110 8586639 8785035 9508205 9540710 9672306 10129149 10363185 10678815 10988266 11254610 11322934 11409846 12131715 12224835 12299049 12597165 12962206 13356994 13665610 14311065 14508459 14558058 15756454 16120510 16482399 16881915 16984401 17114769 17173278 17570070 19016410 19443309 20035491 20258298 20498415 20726370 21357630 23634681 24180765 24263430 24449670 24598098 25194330 27470665 28307335 28524615 28622130 29016918 32405515 32964798 33392485 33763830 33968802 34229538 36395145 38458931 38886618 39391135 39630269 40070982 40996830 42933195 45367721 46749479 47269362 48361530 49447197 50645745 50953203 54941330 55147589 56614670 57049230 58329927 60106473 61495245 64811030 66784970 70904043 72542295 72790290 76917862 78782270 79260538 82411995 84922005 85573845 85866390 90735442 93498958 97216545 98894394 100177455 101291490 101906406 110295178 115376793 116659854 118173405 118890807 120212946 122990490 136103163 140248437 141808086 145084590 159329857 164823990 165442767 169844010 171147690 187951987 192294655 194433090 198151345 200354910 226838605 230753586 233747395 236346810 237781614 247235985 254766015 269212517 272206326 275737945 280496874 291649635 300532365 317574047 318659714 330885534 346130379 354520215 356672421 375903974 384589310 396302690 408309489 420745311 453677210 467494790 477989571 494471970 496328301 509532030 538425034 551475890 563855961 576883965 583299270 594454035 601064730 635148094 680515815 692260758 701242185 709040430 713344842 796649285 807637551 816618978 827213835 841490622 939759935 952722141 955979142 992656602 1082344201 1115308999 1127711922 1153767930 1188908070 1315663909 1346062585 1361031630 1402484370 1433968713 1587870235 1593298570 1615275102 1654427670 1691567883 1730651895 1783362105 1879519870 1905444282 2041547445 2103726555 2164688402 2230617998 2389947855 2422912653 2481641505 2631327818 2692125170 2819279805 2858166423 2867937426 3175740470 3247032603 3345926997 3383135766 3461303790 3566724210 3946991727 4038187755 4083094890 4207453110 4763610705 4779895710 4845825306 4963283010 5411721005 5576544995 5638559610 5716332846 6494065206 6578319545 6691853994 7169843565 7576409407 7807162993 7893983454 8076375510 8457839415 9209647363 9527221410 9741097809 10037780991 10823442010 11153089990 11840975181 12114563265 13156639090 14290832115 14339687130 15152818814 15614325986 16235163015 16729634985 16915678830 18419294726 19482195618 19734958635 20075561982 22729228221 23421488979 23681950362 24229126530 27628942089 28581664230 31387981829 32470326030 33459269970 37882047035 39035814965 39469917270 45458456442 46048236815 46842977958 48705489045 50188904955 53034865849 55257884178 59204875905 62775963658 68187684663 70264466937 75764094070 78071629930 82886826267 92096473630 94163945487 97410978090 100377809910 106069731698 113646141105 117107444895 118409751810 136375369326 138144710445 140528933874 156939909145 159104597547 165773652534 188327890974 219715872803 227292282210 234214889790 265174329245 276289420890 282491836461 313879818290 318209195094 340938423315 351322334685 414434131335 439431745606 470819727435 477313792641 530348658490 564983672922 659147618409 681876846630 702644669370 795522987735 828868262670 941639454870 954627585282 1098579364015 1318295236818 1412459182305 1538011109621 1591045975470 1977442855227 2197158728030 2386568963205 2824918364610 3076022219242 3295738092045 3954885710454 4614033328863 4773137926410 6591476184090 7690055548105 9228066657726 9887214276135 13842099986589 15380111096210 19774428552270 23070166644315 27684199973178 46140333288630 69210499932945 138420999865890
• Sum of all divisors σ(n): 437920978315860
• Sum of proper divisors (its aliquot sum) s(n): 299499978449970
• 138420999865890 is an abundant number, because the sum of its proper divisors (299499978449970) is greater than itself. Its abundance is 161078978584080

Bases of 138420999865890

• Binary: 11111011110010010100110100001101100011000100010₂
• Hexadecimal: 0x7DE4A686C622
• Base-36: 1D2DQ9E90I

Squares and roots of 138420999865890

• 138420999865890 squared (138420999865890²) is 19160373203872719397985492100
• 138420999865890 cubed (138420999865890³) is 2652198016683668041417179403510265654469000
• The square root of 138420999865890 is 11765245.4231048661
• The cube root of 138420999865890 is 51728.9894081803

Scales and comparisons

• 138,420,999,865,890 seconds is equal to 4,401,359 years, 32 weeks, 5 days, 20 hours, 31 minutes, 30 seconds.
• To count from 1 to 138,420,999,865,890 would take you about eleven million, three thousand, three hundred ninety-nine 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 138420999865890 cubic inches would be around 4310.7 feet tall.

Recreational maths with 138420999865890

• 138420999865890 backwards is 098568999024831
• The number of decimal digits it has is: 15
• The sum of 138420999865890's digits is 81
• More coming soon!