81327545760825

Names of 81327545760825

• Cardinal: 81327545760825 can be written as Eighty-one trillion, three hundred twenty-seven billion, five hundred forty-five million, seven hundred sixty thousand, eight hundred twenty-five.

Scientific notation

• Scientific notation: 8.1327545760825 × 10¹³

Factors of 81327545760825

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 339

Divisors of 81327545760825

• Number of divisors d(n): 576
• Complete list of divisors:
  1 3 5 7 9 13 15 21 25 27 35 39 45 63 65 75 81 91 105 117 135 169 175 189 195 225 243 273 311 315 325 351 405 455 507 525 567 585 675 729 819 845 933 945 975 1053 1183 1215 1365 1521 1555 1575 1701 1755 2025 2177 2187 2197 2275 2457 2535 2799 2835 2925 3159 3549 3645 4043 4095 4225 4563 4665 4725 5103 5265 5915 6075 6531 6591 6825 7371 7605 7775 8397 8505 8775 9477 10647 10885 10935 10985 12129 12285 12675 13689 13995 14175 15309 15379 15795 17745 18225 19593 19773 20215 20475 22113 22815 23325 25191 25515 26325 28301 28431 29575 31941 32655 32955 36387 36855 38025 41067 41985 42525 46137 47385 52559 53235 54425 54675 54925 58779 59319 60645 61425 66339 68445 69975 75573 76545 76895 78975 84903 88725 95823 96721 97965 98865 101075 109161 110565 114075 123201 125955 127575 138411 141505 142155 157677 159705 163275 164775 176337 177957 181935 184275 199017 205335 209925 226719 230685 236925 254709 262795 266175 287469 290163 293895 296595 303225 327483 331695 342225 367913 369603 377865 382725 384475 415233 424515 473031 479115 483605 489825 494325 529011 533871 545805 552825 616005 629775 677047 680157 683267 692055 707525 710775 764127 788385 798525 862407 870489 881685 889785 909675 982449 995085 1026675 1103739 1133595 1153425 1245699 1257373 1273545 1313975 1419093 1437345 1450815 1469475 1482975 1587033 1601613 1637415 1658475 1839565 1848015 1889325 2031141 2049801 2076165 2122575 2292381 2365155 2395575 2418025 2587221 2611467 2645055 2669355 2729025 2947347 3080025 3311217 3385235 3400785 3416335 3460275 3737097 3772119 3820635 3941925 4257279 4312035 4352445 4408425 4448925 4761099 4782869 4804839 4912245 4975425 5518695 5667975 6093423 6149403 6228495 6286865 6367725 6877143 7095465 7186725 7254075 7834401 7935165 8008065 8187075 8801611 8842041 9197825 9240075 9933651 10155705 10249005 10380825 11211291 11316357 11461905 11825775 12771837 12936105 13057335 13225275 13346775 14348607 14736735 16345849 16556085 16926175 17003925 17081675 18280269 18448209 18685485 18860595 19103175 20631429 21286395 21560175 21762225 23503203 23805495 23914345 24024195 24561225 26404833 27593475 29800953 30467115 30747015 31142475 31434325 33633873 33949071 34385715 35477325 38315511 39172005 39675825 40040325 43045821 44008055 44210205 49037547 49668255 50778525 51245025 54840807 55344627 56056455 56581785 57309525 61894287 63859185 64680525 65286675 70509609 71743035 73683675 79214499 81729245 82780425 89402859 91401345 92241045 93427425 94302975 101847213 103157145 106431975 114420943 114946533 117516015 119027475 119571725 120120975 129137463 132024165 147112641 149004765 152335575 153735075 164522421 166033881 168169365 169745355 171928575 191577555 195860025 211528827 212496037 215229105 220040275 221051025 237643497 245187735 248341275 268208577 274204035 276723135 280282275 282908925 305541639 309471435 319295925 343262829 352548045 358715175 387412389 396072495 408646225 441337923 447014295 457006725 461205225 493567263 498101643 509236065 515785725 572104715 574732665 587580075 637488111 645687315 660120825 712930491 735563205 745023825 804625731 822612105 830169405 840846825 848726775 916624917 957887775 1029788487 1057644135 1062480185 1076145525 1162237167 1188217485 1225938675 1324013769 1341042885 1371020175 1383615675 1480701789 1487472259 1494304929 1527708195 1547357175 1716314145 1762740225 1912464333 1937061945 1980362475 2138791473 2206689615 2235071475 2467836315 2490508215 2546180325 2749874751 2860523575 2873663325 3089365461 3187440555 3228436575 3486711501 3564652455 3677816025 3972041307 4023128655 4113060525 4150847025 4462416777 4583124585 5148942435 5288220675 5312400925 5737392999 5811185835 5941087425 6416374419 6620068845 6705214425 7403508945 7437361295 7471524645 7638540975 8581570725 9268096383 9562321665 9685309725 10460134503 10693957365 11033448075 11916123921 12339181575 12452541075 13387250331 13749373755 15446827305 15937202775 17212178997 17433557505 17823262275 19249123257 19860206535 20115643275 22312083885 22915622925 25744712175 27804289149 28686964995 29055929175 32081872095 33100344225 35748371763 37017544725 37186806475 37357623225 40161750993 46340481915 47811608325 51636536991 52300672515 53469786825 59580619605 66936251655 68746868775 77234136525 83412867447 86060894985 87167787525 96245616285 99301032675 111560419425 120485252979 139021445745 143434824975 154909610973 160409360475 178741858815 200808754965 231702409575 250238602341 258182684955 261503362575 297903098025 334681258275 361455758937 417064337235 430304474925 464728832919 481228081425 602426264895 695107228725 774548054865 893709294075 1004043774825 1084367276811 1251193011705 1290913424775 1807278794685 2085321686175 2323644164595 3012131324475 3253101830433 3872740274325 5421836384055 6255965058525 9036393973425 11618220822975 16265509152165 27109181920275 81327545760825
• Sum of all divisors σ(n): 187854645977600
• Sum of proper divisors (its aliquot sum) s(n): 106527100216775
• 81327545760825 is an abundant number, because the sum of its proper divisors (106527100216775) is greater than itself. Its abundance is 25199554455950

Bases of 81327545760825

• Binary: 10010011111011110001011011110011011110000111001₂
• Hexadecimal: 0x49F78B79BC39
• Base-36: STTCWXIK9

Squares and roots of 81327545760825

• 81327545760825 squared (81327545760825²) is 6614169699479084428104680625
• 81327545760825 cubed (81327545760825³) is 537914188904247376991657088253059261515625
• The square root of 81327545760825 is 9018178.6276844727
• The cube root of 81327545760825 is 43325.7299976235

Scales and comparisons

• 81,327,545,760,825 seconds is equal to 2,585,964 years, 20 weeks, 2 days, 21 hours, 33 minutes, 45 seconds.
• To count from 1 to 81,327,545,760,825 would take you about six million, four hundred sixty-four thousand, nine hundred ten 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 81327545760825 cubic inches would be around 3610.5 feet tall.

Recreational maths with 81327545760825

• 81327545760825 backwards is 52806754572318
• 81327545760825 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81327545760825's digits is 63
• More coming soon!