21427290055840920

Names of 21427290055840920

• Cardinal: 21427290055840920 can be written as Twenty-one quadrillion, four hundred twenty-seven trillion, two hundred ninety billion, fifty-five million, eight hundred forty thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.142729005584092 × 10¹⁶

Factors of 21427290055840920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 310771610

Divisors of 21427290055840920

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 30 37 40 53 60 74 106 111 120 148 159 185 212 222 265 293 296 318 370 424 444 530 555 586 636 740 795 879 888 1060 1110 1172 1272 1465 1480 1590 1758 1961 2120 2220 2344 2930 3180 3516 3922 4395 4440 5860 5883 6360 7032 7844 8790 9805 10841 11720 11766 15529 15688 17580 19610 21682 23532 29415 31058 32523 35160 39220 43364 46587 47064 54205 58830 62116 65046 77645 78440 86728 93174 108410 117660 124232 130092 155290 162615 186348 216820 232935 235320 260184 310580 325230 372696 433640 465870 574573 621160 650460 931740 1149146 1300920 1723719 1863480 2298292 2872865 3447438 4596584 5745730 6894876 8618595 11491460 13789752 17237190 22982920 34474380 68948760 310771217 621542434 932313651 1243084868 1553856085 1864627302 2486169736 3107712170 3729254604 4661568255 6215424340 7458509208 9323136510 11498535029 12430848680 16470874501 18646273020 22997070058 32941749002 34495605087 37292546040 45994140116 49412623503 57492675145 65883498004 68991210174 82354372505 91055966581 91988280232 98825247006 114985350290 131766996008 137982420348 164708745010 172478025435 182111933162 197650494012 229970700580 247063117515 273167899743 275964840696 329417490020 344956050870 364223866324 395300988024 455279832905 459941401160 494126235030 546335799486 609422356537 658834980040 689912101740 728447732648 910559665810 988252470060 1092671598972 1218844713074 1365839498715 1379824203480 1821119331620 1828267069611 1976504940120 2185343197944 2437689426148 2731678997430 3047111782685 3369070763497 3642238663240 3656534139222 4825966228793 4875378852296 5463357994860 6094223565370 6738141526994 7313068278444 9141335348055 9651932457586 10107212290491 10926715989720 12188447130740 13476283053988 14477898686379 14626136556888 16845353817485 18282670696110 19303864915172 20214424580982 24129831143965 24376894261480 26952566107976 28955797372758 33690707634970 36565341392220 38607729830344 40428849161964 48259662287930 50536061452455 57911594745516 67381415269940 72389493431895 73130682784440 80857698323928 96519324575860 101072122904910 115823189491032 134762830539880 144778986863790 178560750465341 193038649151720 202144245809820 289557973727580 357121500930682 404288491619640 535682251396023 579115947455160 714243001861364 892803752326705 1071364502792046 1428486003722728 1785607504653410 2142729005584092 2678411256980115 3571215009306820 4285458011168184 5356822513960230 7142430018613640 10713645027920460 21427290055840920
• Sum of all divisors σ(n): 67494436763322240
• Sum of proper divisors (its aliquot sum) s(n): 46067146707481320
• 21427290055840920 is an abundant number, because the sum of its proper divisors (46067146707481320) is greater than itself. Its abundance is 24639856651640400

Bases of 21427290055840920

• Binary: 1001100001000000000000110111100010001110001010010011000₂
• Hexadecimal: 0x4C2001BC471498
• Base-36: 5UZC95R0GWO

Squares and roots of 21427290055840920

• 21427290055840920 squared (21427290055840920²) is 459128759137139176531808346446400
• 21427290055840920 cubed (21427290055840920³) is 9837885095009803214584509449306069585245706688000
• The square root of 21427290055840920 is 146380634.1557547701
• The cube root of 21427290055840920 is 277751.0756596891

Scales and comparisons

• 21,427,290,055,840,920 seconds is equal to 681,321,544 years, 42 weeks, 2 days, 23 hours, 22 minutes.
• To count from 1 to 21,427,290,055,840,920 would take you about two billion, forty-three million, nine hundred sixty-four thousand, six hundred thirty-four 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 21427290055840920 cubic inches would be around 23145.9 feet tall.

Recreational maths with 21427290055840920

• 21427290055840920 backwards is 02904855009272412
• 21427290055840920 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21427290055840920's digits is 60
• More coming soon!