991402142972230014192

Names of 991402142972230014192

• Cardinal: 991402142972230014192 can be written as Nine hundred ninety-one quintillion, four hundred two quadrillion, one hundred forty-two trillion, nine hundred seventy-two billion, two hundred thirty million, fourteen thousand, one hundred ninety-two.

Scientific notation

• Scientific notation: 9.91402142972230014192 × 10²⁰

Factors of 991402142972230014192

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 404817845832323

Divisors of 991402142972230014192

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 5669 11338 17007 22676 34014 45352 51021 68028 90704 102042 136056 153063 204084 272112 306126 408168 612252 816336 1224504 2449008 404817845826649 809635691653298 1214453537479947 1619271383306596 2428907074959894 3238542766613192 3643360612439841 4857814149919788 6477085533226384 7286721224879682 9715628299839576 10930081837319523 14573442449759364 19431256599679152 21860163674639046 29146884899518728 43720327349278092 58293769799037456 87440654698556184 174881309397112368 2294912367991273181 4589824735982546362 6884737103973819543 9179649471965092724 13769474207947639086 18359298943930185448 20654211311921458629 27538948415895278172 36718597887860370896 41308422623842917258 55077896831790556344 61962633935764375887 82616845247685834516 110155793663581112688 123925267871528751774 165233690495371669032 247850535743057503548 330467380990743338064 495701071486115007096 991402142972230014192
• Sum of all divisors σ(n): 2846193310438010820000
• Sum of proper divisors (its aliquot sum) s(n): 1854791167465780805808
• 991402142972230014192 is an abundant number, because the sum of its proper divisors (1854791167465780805808) is greater than itself. Its abundance is 863389024493550791616

Bases of 991402142972230014192

• Binary: 1101011011111001110111111101000101110000001100110011001001010011110000₂
• Hexadecimal: 0x35BE77F45C0CCC94F0
• Base-36: 5T87IH66UR0PO0

Squares and roots of 991402142972230014192

• 991402142972230014192 squared (991402142972230014192²) is 982878209089930002118509599023776521412864
• 991402142972230014192 cubed (991402142972230014192³) is 974427562772464169902865143683698329782796712713353158611365888
• The square root of 991402142972230014192 is 31486539075.8055531039
• The cube root of 991402142972230014192 is 9971257.9451489801

Scales and comparisons

• 991,402,142,972,230,014,192 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 991,402,142,972,230,014,192 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 991402142972230014192 cubic inches would be around 830938.2 feet tall.

Recreational maths with 991402142972230014192

• 991402142972230014192 backwards is 291410032279241204199
• 991402142972230014192 is a Harshad number.
• The number of decimal digits it has is: 21
• The sum of 991402142972230014192's digits is 72
• More coming soon!