161490721081536

Names of 161490721081536

• Cardinal: 161490721081536 can be written as One hundred sixty-one trillion, four hundred ninety billion, seven hundred twenty-one million, eighty-one thousand, five hundred thirty-six.

Scientific notation

• Scientific notation: 1.61490721081536 × 10¹⁴

Factors of 161490721081536

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 22830

Divisors of 161490721081536

• Number of divisors d(n): 378
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 32 33 36 42 44 48 49 56 63 64 66 72 77 84 88 96 98 99 112 126 132 144 147 154 168 176 192 196 198 224 231 252 264 288 294 308 336 352 392 396 441 448 462 504 528 539 576 588 616 672 693 704 784 792 882 924 1008 1056 1078 1176 1232 1344 1386 1568 1584 1617 1764 1848 2016 2112 2156 2352 2464 2772 3136 3168 3234 3528 3696 4032 4312 4704 4851 4928 5544 6336 6468 7056 7392 8624 9408 9702 11088 12936 14112 14784 17248 19404 22176 22807 25872 28224 34496 38808 44352 45614 51744 68421 77616 91228 103488 136842 155232 159649 182456 205263 250877 273684 310464 319298 364912 410526 478947 501754 547368 638596 729824 752631 821052 957894 1003508 1094736 1117543 1277192 1436841 1459648 1505262 1642104 1756139 1915788 2007016 2189472 2235086 2257893 2554384 2873682 3010524 3284208 3352629 3512278 3831576 4014032 4378944 4470172 4515786 5108768 5268417 5747364 6021048 6568416 6705258 7024556 7663152 8028064 8940344 9031572 10057887 10217536 10536834 11494728 12042096 12292973 13136832 13410516 14049112 15326304 15805251 16056128 17880688 18063144 20115774 21073668 22989456 24084192 24585946 26821032 28098224 30652608 31610502 35761376 36126288 36878919 40231548 42147336 45978912 48168384 49171892 53642064 56196448 63221004 71522752 72252576 73757838 80463096 84294672 91957824 98343784 107284128 110636757 112392896 126442008 144505152 147515676 160926192 168589344 196687568 214568256 221273514 252884016 295031352 321852384 337178688 393375136 442547028 505768032 520159249 590062704 643704768 786750272 885094056 1011536064 1040318498 1180125408 1560477747 1770188112 2080636996 2360250816 3120955494 3540376224 3641114743 4161273992 4681433241 5721751739 6241910988 7080752448 7282229486 8322547984 9362866482 10923344229 11443503478 12483821976 14564458972 16645095968 17165255217 18725732964 21846688458 22887006956 24967643952 25487803201 29128917944 32770032687 33290191936 34330510434 37451465928 40052262173 43693376916 45774013912 49935287904 50975606402 51495765651 58257835888 65540065374 68661020868 74902931856 76463409603 80104524346 87386753832 91548027824 99870575808 101951212804 102991531302 116515671776 120156786519 131080130748 137322041736 149805863712 152926819206 160209048692 174773507664 183096055648 203902425608 205983062604 229390228809 233031343552 240313573038 262160261496 274644083472 280365835211 299611727424 305853638412 320418097384 349547015328 360470359557 366192111296 407804851216 411966125208 458780457618 480627146076 524320522992 549288166944 560731670422 611707276824 640836194768 699094030656 720940719114 815609702432 823932250416 841097505633 917560915236 961254292152 1048641045984 1098576333888 1121463340844 1223414553648 1281672389536 1441881438228 1631219404864 1647864500832 1682195011266 1835121830472 1922508584304 2097282091968 2242926681688 2446829107296 2523292516899 2563344779072 2883762876456 3295729001664 3364390022532 3670243660944 3845017168608 4485853363376 4893658214592 5046585033798 5767525752912 6728780045064 7340487321888 7690034337216 8971706726752 10093170067596 11535051505824 13457560090128 14680974643776 17943413453504 20186340135192 23070103011648 26915120180256 40372680270384 53830240360512 80745360540768 161490721081536
• Sum of all divisors σ(n): 587433274057188
• Sum of proper divisors (its aliquot sum) s(n): 425942552975652
• 161490721081536 is an abundant number, because the sum of its proper divisors (425942552975652) is greater than itself. Its abundance is 264451831894116

Bases of 161490721081536

• Binary: 100100101101111111111101000100001000100011000000₂
• Hexadecimal: 0x92DFFD1088C0
• Base-36: 1L8RT9RJK0

Squares and roots of 161490721081536

• 161490721081536 squared (161490721081536²) is 26079252995434455861560119296
• 161490721081536 cubed (161490721081536³) is 4211557371500517957561763643085218302918656
• The square root of 161490721081536 is 12707899.9477307817
• The cube root of 161490721081536 is 54456.4330531477

Scales and comparisons

• 161,490,721,081,536 seconds is equal to 5,134,905 years, 21 weeks, 1 day, 1 hour, 45 minutes, 36 seconds.
• To count from 1 to 161,490,721,081,536 would take you about twelve million, eight hundred thirty-seven thousand, two hundred sixty-three 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 161490721081536 cubic inches would be around 4538 feet tall.

Recreational maths with 161490721081536

• 161490721081536 backwards is 635180127094161
• The number of decimal digits it has is: 15
• The sum of 161490721081536's digits is 54
• More coming soon!