161788748387481

Names of 161788748387481

• Cardinal: 161788748387481 can be written as One hundred sixty-one trillion, seven hundred eighty-eight billion, seven hundred forty-eight million, three hundred eighty-seven thousand, four hundred eighty-one.

Scientific notation

• Scientific notation: 1.61788748387481 × 10¹⁴

Factors of 161788748387481

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 175

Divisors of 161788748387481

• Number of divisors d(n): 378
• Complete list of divisors:
  1 3 9 27 29 41 43 59 81 87 123 129 177 243 261 369 387 531 729 783 841 1107 1161 1189 1247 1593 1711 1763 1849 2349 2419 2523 2537 3321 3481 3483 3567 3741 4779 5133 5289 5547 7047 7257 7569 7611 9963 10443 10449 10701 11223 14337 15399 15867 16641 21141 21771 22707 22833 29889 31329 31347 32103 33669 34481 36163 43011 46197 47601 49619 49923 51127 53621 65313 68121 68499 70151 73573 75809 93987 96309 100949 101007 103443 104017 108489 109091 138591 142721 142803 148857 149683 149769 153381 160863 195939 204363 205497 210453 220719 227427 281961 288927 302847 303021 310329 312051 325467 327273 415773 428163 428409 446571 449049 449307 460143 482589 587817 613089 616491 631359 662157 682281 845883 866781 908541 909063 930987 936153 976401 981819 1247319 1284489 1285227 1339713 1347147 1347921 1380429 1447767 1482683 1555009 1763451 1849473 1894077 1986471 2034379 2046843 2133617 2198461 2537649 2725623 2792961 2808459 2927521 2929203 2945457 3016493 3163639 3853467 4019139 4041441 4138909 4141287 4340807 4343301 4448049 4472731 4665027 5682231 5959413 6103137 6137003 6140529 6400851 6436369 6595383 8176869 8378883 8425377 8782563 8787609 8836371 9049479 9490917 11560401 12057417 12124323 12416727 12423861 13022421 13029903 13344147 13418193 13995081 17046693 17878239 18309411 18411009 18421587 19202553 19309107 19786149 24530607 25136649 25276131 26347689 26362827 26509113 27148437 28472751 34681203 36172251 36372969 37250181 37271583 39067263 39089709 40032441 40254579 41985243 51140079 53634717 54928233 55233027 55264761 57607659 57927321 59358447 63755369 73591821 75828393 79043067 79527339 81445311 85418253 87478297 91745531 104043609 109118907 111750543 117201789 120028361 120097323 120763737 125883403 125955729 129709199 164784699 165699081 172822977 173781963 177973087 178075341 186654701 191266107 237129201 244335933 256254759 262434891 263891129 275236593 335251629 351605367 360085083 360291969 362291211 377650209 377867187 389127597 494354097 497097243 518468931 521345889 533919261 534226023 559964103 573798321 711387603 733007799 768764277 787304673 791673387 825709779 1005754887 1054816101 1080255249 1080875907 1086873633 1132950627 1133601561 1167382791 1483062291 1491291729 1555406793 1564037667 1601757783 1602678069 1679892309 1721394963 2134162809 2199023397 2306292831 2361914019 2375020161 2477129337 3017264661 3164448303 3240765747 3260620899 3398851881 3502148373 3761566771 4473875187 4692113001 4805273349 5039676927 5161219523 5164184889 5412986329 7085742057 7125060483 7431388011 7652842741 9722297241 10196555643 10506445119 11284700313 14415820047 15119030781 15483658569 15492554667 16238958987 21257226171 21375181449 22294164033 22958528223 29166891723 30589666929 31519335357 33854100939 43247460141 45357092343 46450975707 46477664001 48716876961 63771678513 64125544347 66882492099 68875584669 87500675169 91769000787 94558006071 101562302817 129742380423 136071277029 139352927121 146150630883 192376633041 206626754007 221932439489 304686908451 418058781363 438451892649 619880262021 665797318467 914060725353 1254176344089 1315355677947 1859640786063 1997391955401 2742182176059 3762529032267 3946067033841 5578922358189 5992175866203 17976527598609 53929582795827 161788748387481
• Sum of all divisors σ(n): 268018114784238
• Sum of proper divisors (its aliquot sum) s(n): 106229366396757
• 161788748387481 is a deficient number, because the sum of its proper divisors (106229366396757) is less than itself. Its deficiency is 55559381990724

Bases of 161788748387481

• Binary: 100100110010010101100000111000000101010010011001₂
• Hexadecimal: 0x932560E05499
• Base-36: 1LCKQ3J0K9

Squares and roots of 161788748387481

• 161788748387481 squared (161788748387481²) is 26175599104787635877717525361
• 161788748387481 cubed (161788748387481³) is 4234917417456059731258017463348302472405641
• The square root of 161788748387481 is 12719620.6070574683
• The cube root of 161788748387481 is 54489.9118198681

Scales and comparisons

• 161,788,748,387,481 seconds is equal to 5,144,381 years, 39 weeks, 1 day, 4 hours, 31 minutes, 21 seconds.
• To count from 1 to 161,788,748,387,481 would take you about twelve million, eight hundred sixty thousand, nine hundred fifty-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 161788748387481 cubic inches would be around 4540.8 feet tall.

Recreational maths with 161788748387481

• 161788748387481 backwards is 184783847887161
• 161788748387481 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 161788748387481's digits is 81
• More coming soon!