81972582827904

Names of 81972582827904

• Cardinal: 81972582827904 can be written as Eighty-one trillion, nine hundred seventy-two billion, five hundred eighty-two million, eight hundred twenty-seven thousand, nine hundred four.

Scientific notation

• Scientific notation: 8.1972582827904 × 10¹³

Factors of 81972582827904

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 660013

Divisors of 81972582827904

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 288 384 576 1152 135721 271442 407163 524287 542884 814326 1048574 1085768 1221489 1572861 1628652 2097148 2171536 2442978 3145722 3257304 4194296 4343072 4718583 4885956 6291444 6514608 8388592 8686144 9437166 9771912 12582888 13029216 16777184 17372288 18874332 19543824 25165776 26058432 33554368 37748664 39087648 50331552 52116864 67108736 75497328 78175296 100663104 150994656 156350592 201326208 301989312 603978624 71156755927 142313511854 213470267781 284627023708 426940535562 569254047416 640410803343 853881071124 1138508094832 1280821606686 1707762142248 2277016189664 2561643213372 3415524284496 4554032379328 5123286426744 6831048568992 9108064758656 10246572853488 13662097137984 20493145706976 27324194275968 40986291413952 81972582827904
• Sum of all divisors σ(n): 235886833827840
• Sum of proper divisors (its aliquot sum) s(n): 153914250999936
• 81972582827904 is an abundant number, because the sum of its proper divisors (153914250999936) is greater than itself. Its abundance is 71941668172032

Bases of 81972582827904

• Binary: 10010101000110110111010101011100100011110000000₂
• Hexadecimal: 0x4A8DBAAE4780
• Base-36: T21ONCGW0

Squares and roots of 81972582827904

• 81972582827904 squared (81972582827904²) is 6719504335477581741681033216
• 81972582827904 cubed (81972582827904³) is 550815125702396095840883147407977835659264
• The square root of 81972582827904 is 9053871.1514966901
• The cube root of 81972582827904 is 43439.9723099443

Scales and comparisons

• 81,972,582,827,904 seconds is equal to 2,606,474 years, 29 weeks, 6 days, 16 hours, 38 minutes, 24 seconds.
• To count from 1 to 81,972,582,827,904 would take you about six million, five hundred sixteen thousand, one hundred eighty-six 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 81972582827904 cubic inches would be around 3620 feet tall.

Recreational maths with 81972582827904

• 81972582827904 backwards is 40972828527918
• 81972582827904 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81972582827904's digits is 72
• More coming soon!