16400078278494422121

Names of 16400078278494422121

• Cardinal: 16400078278494422121 can be written as Sixteen quintillion, four hundred quadrillion, seventy-eight trillion, two hundred seventy-eight billion, four hundred ninety-four million, four hundred twenty-two thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 1.6400078278494422121 × 10¹⁹

Factors of 16400078278494422121

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 182972

Divisors of 16400078278494422121

• Number of divisors d(n): 135
• Complete list of divisors:
  1 3 9 23 27 69 81 107 207 321 529 621 963 1587 1863 2461 2889 4761 7383 8667 11449 14283 22149 34347 42849 56603 66447 103041 169809 182839 199341 263327 309123 509427 548517 789981 927369 1528281 1645551 2369943 4205297 4584843 4936653 6056521 7109829 12615891 14809959 18169563 19563773 21329487 37847673 54508689 58691319 96721831 113543019 163526067 176073957 290165493 340629057 449966779 490578201 528221871 870496479 1349900337 1584665613 2093323711 2611489437 4049701011 6279971133 7834468311 10349235917 12149103033 18839913399 31047707751 33430099921 36447309099 48146445353 56519740197 93143123253 100290299763 144439336059 169559220591 279429369759 300870899289 433318008177 768892298183 838288109277 902612697867 1107368243119 1299954024531 2306676894549 2707838093601 3322104729357 3577020691547 3899862073593 6920030683647 9966314188071 10731062074641 17684522858209 20760092050941 29898942564213 32193186223923 53053568574627 62280276152823 82271475905581 89696827692639 96579558671769 159160705723881 246814427716743 289738676015307 382741213995529 477482117171643 740443283150229 1148223641986587 1432446351514929 1892243945828363 2221329849450687 3444670925959761 5676731837485089 6663989548352061 8803047921897167 10334012777879283 17030195512455267 26409143765691501 31002038333637849 51090586537365801 79227431297074503 153271759612097403 202470102203634841 237682293891223509 607410306610904523 713046881673670527 1822230919832713569 5466692759498140707 16400078278494422121
• Sum of all divisors σ(n): 25852090338540166701
• Sum of proper divisors (its aliquot sum) s(n): 9452012060045744580
• 16400078278494422121 is a deficient number, because the sum of its proper divisors (9452012060045744580) is less than itself. Its deficiency is 6948066218448677541

Bases of 16400078278494422121

• Binary: 1110001110011000110010000100110110001110010000101000010001101001₂
• Hexadecimal: 0xE398C84D8E428469
• Base-36: 3GLLQJZT2KPK9

Squares and roots of 16400078278494422121

• 16400078278494422121 squared (16400078278494422121²) is 268962567540744568257794028509734138641
• 16400078278494422121 cubed (16400078278494422121³) is 4411007161653053916944236834517851357038221762170991277561
• 16400078278494422121 is a perfect square number. Its square root is 4049701011
• The cube root of 16400078278494422121 is 2540672.2278084571

Scales and comparisons

• 16,400,078,278,494,422,121 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 16,400,078,278,494,422,121 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 16400078278494422121 cubic inches would be around 211722.7 feet tall.

Recreational maths with 16400078278494422121

• 16400078278494422121 backwards is 12122449487287000461
• The number of decimal digits it has is: 20
• The sum of 16400078278494422121's digits is 72
• More coming soon!