18918039798958213809

Names of 18918039798958213809

• Cardinal: 18918039798958213809 can be written as Eighteen quintillion, nine hundred eighteen quadrillion, thirty-nine trillion, seven hundred ninety-eight billion, nine hundred fifty-eight million, two hundred thirteen thousand, eight hundred nine.

Scientific notation

• Scientific notation: 1.8918039798958213809 × 10¹⁹

Factors of 18918039798958213809

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1197

Divisors of 18918039798958213809

• Number of divisors d(n): 175
• Complete list of divisors:
  1 3 7 9 21 27 49 63 81 147 189 343 441 567 1029 1187 1323 2401 3087 3561 3969 7203 8309 9261 10683 16807 21609 24927 27783 32049 50421 58163 64827 74781 96147 117649 151263 174489 194481 224343 352947 407141 453789 523467 673029 1058841 1221423 1361367 1408969 1570401 2849987 3176523 3664269 4226907 4711203 8549961 9529569 9862783 10992807 12680721 19949909 25649883 29588349 32978421 38042163 59849727 69039481 76949649 88765047 114126489 139649363 179549181 207118443 230848947 266295141 418948089 483276367 538647543 621355329 798885423 1256844267 1449829101 1615942629 1672446203 1864065987 3382934569 3770532801 4349487303 5017338609 5592197961 10148803707 11311598403 11707123421 13048461909 15052015827 23680541983 30446411121 35121370263 39145385727 45156047481 71041625949 81949863947 91339233363 105364110789 135468142443 165763793881 213124877847 245849591841 274017700089 316092332367 497291381643 573649047629 639374633541 737548775523 948276997101 1491874144929 1720947142887 1918123900623 1985193642961 2212646326569 4015543333403 4475622434787 5162841428661 5955580928883 6637938979707 12046630000209 13426867304361 13896355500727 15488524285983 17866742786649 28108803333821 36139890000627 41689066502181 46465572857949 53600228359947 84326410001463 97274488505089 108419670001881 125067199506543 160800685079841 196761623336747 252979230004389 291823465515267 325259010005643 375201598519629 590284870010241 680921419535623 758937690013167 875470396545801 1125604795558887 1770854610030723 2042764258606869 2276813070039501 2626411189637403 4766449936749361 5312563830092169 6128292775820607 7879233568912209 14299349810248083 15937691490276507 18384878327461821 33365149557245527 42898049430744249 55154634982385463 100095448671736581 128694148292232747 233556046900718689 300286346015209743 386082444876698241 700668140702156067 900859038045629229 2102004422106468201 2702577114136887687 6306013266319404603 18918039798958213809
• Sum of all divisors σ(n): 32998088154870602137
• Sum of proper divisors (its aliquot sum) s(n): 14080048355912388328
• 18918039798958213809 is a deficient number, because the sum of its proper divisors (14080048355912388328) is less than itself. Its deficiency is 4837991443045825481

Bases of 18918039798958213809

• Binary: 10000011010001010011000001111011100001111100110110100101010110001₂
• Hexadecimal: 0x1068A60F70F9B4AB1
• Base-36: 3ZQALF5E2TI29

Squares and roots of 18918039798958213809

• 18918039798958213809 squared (18918039798958213809²) is 357892229834966934752228514867758288481
• 18918039798958213809 cubed (18918039798958213809³) is 6770619447755804720418395421396673364997770767734699834129
• 18918039798958213809 is a perfect square number. Its square root is 4349487303
• The cube root of 18918039798958213809 is 2664559.2283065169

Scales and comparisons

• 18,918,039,798,958,213,809 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,918,039,798,958,213,809 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 18918039798958213809 cubic inches would be around 222046.6 feet tall.

Recreational maths with 18918039798958213809

• 18918039798958213809 backwards is 90831285989793081981
• The number of decimal digits it has is: 20
• The sum of 18918039798958213809's digits is 108
• More coming soon!