821991445142012

Names of 821991445142012

• Cardinal: 821991445142012 can be written as Eight hundred twenty-one trillion, nine hundred ninety-one billion, four hundred forty-five million, one hundred forty-two thousand and twelve.

Scientific notation

• Scientific notation: 8.21991445142012 × 10¹⁴

Factors of 821991445142012

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 51961

Divisors of 821991445142012

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 41 61 82 122 164 244 1039 1607 2078 2501 3214 4156 5002 6428 10004 42599 49211 63379 65887 85198 98027 98422 126758 131774 170396 196054 196844 253516 263548 392108 1669673 2017651 2598539 3001871 3339346 4019107 4035302 5197078 6003742 6678692 8038214 8070604 10394156 12007484 16076428 51130229 68456593 79082077 101850053 102260458 123076711 136913186 158164154 203700106 204520916 246153422 273826372 316328308 407400212 492306844 2096339389 3118943969 3242365157 4175852173 4192678778 4824006697 6237887938 6484730314 8351704346 8385357556 9648013394 12475775876 12969460628 16703408692 19296026788 82166278003 127876702729 164332556006 197784274577 255753405458 328665112012 395568549154 511506810916 791137098308 3368817398123 5012142958183 6737634796246 10024285916366 13475269592492 20048571832732 205497861285503 410995722571006 821991445142012
• Sum of all divisors σ(n): 1500131805419520
• Sum of proper divisors (its aliquot sum) s(n): 678140360277508
• 821991445142012 is a deficient number, because the sum of its proper divisors (678140360277508) is less than itself. Its deficiency is 143851084864504

Bases of 821991445142012

• Binary: 10111010111001100011001100000110001001100111111100₂
• Hexadecimal: 0x2EB98CC1899FC
• Base-36: 83DDNN8WL8

Squares and roots of 821991445142012

• 821991445142012 squared (821991445142012²) is 675669935886653323194847408144
• 821991445142012 cubed (821991445142012³) is 555394907038480760282120049308337998205345728
• The square root of 821991445142012 is 28670393.1808060839
• The cube root of 821991445142012 is 93674.7262375573

Scales and comparisons

• 821,991,445,142,012 seconds is equal to 26,136,785 years, 19 weeks, 1 day, 7 hours, 53 minutes, 32 seconds.
• To count from 1 to 821,991,445,142,012 would take you about sixty-five million, three hundred forty-one thousand, nine 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 821991445142012 cubic inches would be around 7806.2 feet tall.

Recreational maths with 821991445142012

• 821991445142012 backwards is 210241544199128
• The number of decimal digits it has is: 15
• The sum of 821991445142012's digits is 53
• More coming soon!