81729776248224

Names of 81729776248224

• Cardinal: 81729776248224 can be written as Eighty-one trillion, seven hundred twenty-nine billion, seven hundred seventy-six million, two hundred forty-eight thousand, two hundred twenty-four.

Scientific notation

• Scientific notation: 8.1729776248224 × 10¹³

Factors of 81729776248224

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2112535622

Divisors of 81729776248224

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 31 32 39 48 52 62 78 93 96 104 124 156 186 208 248 312 372 403 416 496 624 744 806 992 1209 1248 1488 1612 2418 2976 3224 4836 6448 9672 12896 19344 38688 2112535573 4225071146 6337606719 8450142292 12675213438 16900284584 25350426876 27462962449 33800569168 50700853752 54925924898 65488602763 67601138336 82388887347 101401707504 109851849796 130977205526 164777774694 196465808289 202803415008 219703699592 261954411052 329555549388 392931616578 439407399184 523908822104 659111098776 785863233156 851351835919 878814798368 1047817644208 1318222197552 1571726466312 1702703671838 2095635288416 2554055507757 2636444395104 3143452932624 3405407343676 5108111015514 6286905865248 6810814687352 10216222031028 13621629374704 20432444062056 27243258749408 40864888124112 81729776248224
• Sum of all divisors σ(n): 238496816162304
• Sum of proper divisors (its aliquot sum) s(n): 156767039914080
• 81729776248224 is an abundant number, because the sum of its proper divisors (156767039914080) is greater than itself. Its abundance is 75037263665856

Bases of 81729776248224

• Binary: 10010100101010100110010010001111110010110100000₂
• Hexadecimal: 0x4A553247E5A0
• Base-36: SYY52KSYO

Squares and roots of 81729776248224

• 81729776248224 squared (81729776248224²) is 6679756325584759897263154176
• 81729776248224 cubed (81729776248224³) is 545934989882701329579052044596193758183424
• The square root of 81729776248224 is 9040452.2148078411
• The cube root of 81729776248224 is 43397.0394903085

Scales and comparisons

• 81,729,776,248,224 seconds is equal to 2,598,754 years, 4 weeks, 8 hours, 30 minutes, 24 seconds.
• To count from 1 to 81,729,776,248,224 would take you about six million, four hundred ninety-six thousand, eight hundred eighty-five 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 81729776248224 cubic inches would be around 3616.4 feet tall.

Recreational maths with 81729776248224

• 81729776248224 backwards is 42284267792718
• The number of decimal digits it has is: 14
• The sum of 81729776248224's digits is 69
• More coming soon!