161355083981996421

Names of 161355083981996421

• Cardinal: 161355083981996421 can be written as One hundred sixty-one quadrillion, three hundred fifty-five trillion, eighty-three billion, nine hundred eighty-one million, nine hundred ninety-six thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 1.61355083981996421 × 10¹⁷

Factors of 161355083981996421

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 348404

Divisors of 161355083981996421

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 11 27 33 37 99 111 121 297 333 363 407 999 1089 1221 1331 3267 3663 3993 4477 10989 11979 13431 35937 40293 49247 120879 147741 348353 443223 1045059 1329669 3135177 3831883 9405531 11495649 12889061 34486947 38667183 42150713 103460841 116001549 126452139 141779671 348004647 379356417 425339013 463657843 1138069251 1276017039 1390973529 1559576381 3828051117 4172920587 4678729143 12518761761 14036187429 17155340191 42108562287 51466020573 121349812609 154398061719 364049437827 463194185157 1092148313481 1334847938699 3276444940443 4004543816097 4489943066533 12013631448291 13469829199599 14683327325689 36040894344873 40409487598797 44049981977067 49389373731863 121228462796391 132149945931201 148168121195589 161516600582579 396449837793603 444504363586767 484549801747737 543283111050493 1333513090760301 1453649405243211 1629849333151479 4360948215729633 4889547999454437 5976114221555423 14668643998363311 17928342664666269 53785027993998807 161355083981996421
• Sum of all divisors σ(n): 270038086187744640
• Sum of proper divisors (its aliquot sum) s(n): 108683002205748219
• 161355083981996421 is a deficient number, because the sum of its proper divisors (108683002205748219) is less than itself. Its deficiency is 52672081776248202

Bases of 161355083981996421

• Binary: 1000111101001111111001100000001111011100110100000110000101₂
• Hexadecimal: 0x23D3F980F734185
• Base-36: 184RLQ9M2HZ9

Squares and roots of 161355083981996421

• 161355083981996421 squared (161355083981996421²) is 26035463126837117996632856856809241
• 161355083981996421 cubed (161355083981996421³) is 4200954339340974311459007261305729681113987141726461
• The square root of 161355083981996421 is 401690283.6539569835
• The cube root of 161355083981996421 is 544411.8267945483

Scales and comparisons

• 161,355,083,981,996,421 seconds is equal to 5,130,592,566 years, 30 weeks, 2 days, 1 hour, 40 minutes, 21 seconds.
• To count from 1 to 161,355,083,981,996,421 would take you about fifteen billion, three hundred ninety-one million, seven hundred seventy-seven thousand, six hundred ninety-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 161355083981996421 cubic inches would be around 45367.7 feet tall.

Recreational maths with 161355083981996421

• 161355083981996421 backwards is 124699189380553161
• The number of decimal digits it has is: 18
• The sum of 161355083981996421's digits is 81
• More coming soon!