138898171810821807

Names of 138898171810821807

• Cardinal: 138898171810821807 can be written as One hundred thirty-eight quadrillion, eight hundred ninety-eight trillion, one hundred seventy-one billion, eight hundred ten million, eight hundred twenty-one thousand, eight hundred seven.

Scientific notation

• Scientific notation: 1.38898171810821807 × 10¹⁷

Factors of 138898171810821807

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 308

Divisors of 138898171810821807

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 9 27 47 81 109 141 149 243 327 423 447 729 981 1269 1341 2187 2209 2943 3807 4023 5123 6627 7003 8829 11421 11881 12069 15369 16241 19881 21009 22201 26487 34263 35643 36207 46107 48723 59643 63027 66603 79461 102789 106929 108621 138321 146169 178929 189081 199809 238383 240781 320787 325863 329141 414963 438507 536787 558407 567243 599427 722343 763327 962361 987423 1043447 1244889 1295029 1315521 1610361 1675221 1701729 1770269 1798281 2167029 2289981 2419909 2887083 2962269 3130341 3734667 3885087 3946563 4831083 5025663 5105187 5310807 5394843 6501087 6869943 7259727 8661249 8886807 9391023 11204001 11655261 11839689 15076989 15315561 15932421 16184529 19503261 20609829 21779181 25983747 26245129 26660421 28173069 34965783 35519067 35876369 45230967 47797263 48553587 49042009 58509783 60866363 61829487 65337543 78735387 79981263 83202643 84519207 104897349 107629107 113735723 135692901 143391789 147126027 175529349 182599089 185488461 192959321 196012629 236206161 239943789 249607929 253557621 263770081 314692047 322887321 341207169 407078703 430175367 441378081 526588047 547797267 556465383 578877963 588037887 708618483 719831367 748823787 760672863 791310243 944076141 968661963 1023621507 1221236109 1290526101 1324134243 1643391801 1669396149 1736633889 1764113661 2125855449 2246471361 2282018589 2373930729 2832228423 2860719061 2905985889 3070864521 3871578303 3910524221 3972402729 4930175403 5209901667 5292340983 5345578981 6377566347 6739414083 7121792187 8582157183 8717957667 9069088087 9212593563 11731572663 11917208187 12397193807 14790526209 15629705001 16036736943 19132699041 20218242249 21365376561 25746471549 26153873001 27207264261 27637780689 28750938829 35194717989 35751624561 37191581421 44371578627 46889115003 48110210829 57398097123 60654726747 64096129683 77239414647 78461619003 81621792783 82913342067 86252816487 105584153967 107254873683 111574744263 133114735881 140667345009 144330632487 181964180241 192288389049 231718243941 244865378349 248740026201 258758449461 316752461901 334724232789 422002035027 426247140089 432991897461 576865167147 582668108929 695154731823 734596135047 776275348383 950257385703 1004172698367 1278741420267 1298975692383 1351294124963 1748004326787 2085464195469 2203788405141 2328826045149 2850772157109 3012518095101 3836224260801 3896927077149 4053882374889 5244012980361 6256392586407 6611365215423 6986478135447 8552316471327 9037554285303 11508672782403 11690781231447 12161647124667 15732038941083 19834095646269 20959434406341 27112662855909 34526018347209 36484941374001 47196116823249 62878303219023 63510823873261 103578055041627 109454824122003 141588350469747 190532471619783 310734165124881 328364472366009 424765051409241 571597414859349 932202495374643 985093417098027 1274295154227723 1714792244578047 2955280251294081 5144376733734141 15433130201202423 46299390603607269 138898171810821807
• Sum of all divisors σ(n): 216264180831899200
• Sum of proper divisors (its aliquot sum) s(n): 77366009021077393
• 138898171810821807 is a deficient number, because the sum of its proper divisors (77366009021077393) is less than itself. Its deficiency is 61532162789744414

Bases of 138898171810821807

• Binary: 111101101011101110010011010111110101111000011011010101111₂
• Hexadecimal: 0x1ED7726BEBC36AF
• Base-36: 11ZNAJ8JN3XR

Squares and roots of 138898171810821807

• 138898171810821807 squared (138898171810821807²) is 19292702132388573655861996706745249
• 138898171810821807 cubed (138898171810821807³) is 2679721055479516346994071288773558761430810882844943
• The square root of 138898171810821807 is 372690450.3885520905
• The cube root of 138898171810821807 is 517883.6217473167

Scales and comparisons

• 138,898,171,810,821,807 seconds is equal to 4,416,532,223 years, 17 weeks, 22 hours, 3 minutes, 27 seconds.
• To count from 1 to 138,898,171,810,821,807 would take you about thirteen billion, two hundred forty-nine million, five hundred ninety-six thousand, six hundred sixty-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 138898171810821807 cubic inches would be around 43157 feet tall.

Recreational maths with 138898171810821807

• 138898171810821807 backwards is 708128018171898831
• 138898171810821807 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 138898171810821807's digits is 81
• More coming soon!