168640835248474807400

Names of 168640835248474807400

• Cardinal: 168640835248474807400 can be written as One hundred sixty-eight quintillion, six hundred forty quadrillion, eight hundred thirty-five trillion, two hundred forty-eight billion, four hundred seventy-four million, eight hundred seven thousand, four hundred.

Scientific notation

• Scientific notation: 1.686408352484748074 × 10²⁰

Factors of 168640835248474807400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 712767689131366

Divisors of 168640835248474807400

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 20 25 26 28 35 40 50 52 56 65 70 91 100 104 130 140 169 175 182 200 260 280 325 338 350 364 455 520 650 676 700 728 845 910 1183 1300 1352 1400 1690 1820 2275 2366 2600 3380 3640 4225 4550 4732 5915 6760 8450 9100 9464 11830 16900 18200 23660 29575 33800 47320 59150 118300 236600 712767689131339 1425535378262678 2851070756525356 3563838445656695 4989373823919373 5702141513050712 7127676891313390 9265979958707407 9978747647838746 14255353782626780 17819192228283475 18531959917414814 19957495295677492 24946869119596865 28510707565253560 35638384456566950 37063919834829628 39914990591354984 46329899793537035 49893738239193730 64861859710951849 71276768913133900 74127839669659256 92659799587074070 99787476478387460 120457739463196291 124734345597984325 129723719421903698 142553537826267800 185319599174148140 199574952956774920 231649498967685175 240915478926392582 249468691195968650 259447438843807396 324309298554759245 370639198348296280 463298997935370350 481830957852785164 498937382391937300 518894877687614792 602288697315981455 648618597109518490 843204176242374037 926597995870740700 963661915705570328 997874764783874600 1204577394631962910 1297237194219036980 1621546492773796225 1686408352484748074 1853195991741481400 2409154789263925820 2594474388438073960 3011443486579907275 3243092985547592450 3372816704969496148 4216020881211870185 4818309578527851640 6022886973159814550 6486185971095184900 6745633409938992296 8432041762423740370 12045773946319629100 12972371942190369800 16864083524847480740 21080104406059350925 24091547892639258200 33728167049694961480 42160208812118701850 84320417624237403700 168640835248474807400
• Sum of all divisors σ(n): 485223732053051018400
• Sum of proper divisors (its aliquot sum) s(n): 316582896804576211000
• 168640835248474807400 is an abundant number, because the sum of its proper divisors (316582896804576211000) is greater than itself. Its abundance is 147942061556101403600

Bases of 168640835248474807400

• Binary: 10010010010001011100100110100010100100111010100000111101110001101000₂
• Hexadecimal: 0x9245C9A293A83DC68
• Base-36: ZL956VKLJHI08

Squares and roots of 168640835248474807400

• 168640835248474807400 squared (168640835248474807400²) is 28439731313303223054540087912467094760000
• 168640835248474807400 cubed (168640835248474807400³) is 4796100042917658904689658372807945809979854029328549224000000
• The square root of 168640835248474807400 is 12986178623.7705358077
• The cube root of 168640835248474807400 is 5524855.3868194925

Scales and comparisons

• 168,640,835,248,474,807,400 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 168,640,835,248,474,807,400 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 168640835248474807400 cubic inches would be around 460404.6 feet tall.

Recreational maths with 168640835248474807400

• 168640835248474807400 backwards is 004708474842538046861
• The number of decimal digits it has is: 21
• The sum of 168640835248474807400's digits is 89
• More coming soon!