2991387563129

Names of 2991387563129

• Cardinal: 2991387563129 can be written as Two trillion, nine hundred ninety-one billion, three hundred eighty-seven million, five hundred sixty-three thousand, one hundred twenty-nine.

Scientific notation

• Scientific notation: 2.991387563129 × 10¹²

Factors of 2991387563129

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6958

Divisors of 2991387563129

• Number of divisors d(n): 64
• Complete list of divisors:
  1 7 19 37 71 133 259 497 703 1349 1657 2627 4921 5167 9443 11599 18389 31483 36169 49913 61309 98173 117647 191179 220381 349391 366857 429163 687211 823529 1164871 1338253 2235293 2567999 3632401 4352939 6970283 8154097 8561719 13573709 15647051 25426807 30470573 48791981 59932033 82705841 95015963 162672661 257900471 316783603 578940887 607882049 1138708627 1805303297 2217485221 4255174343 6018888457 11549758931 22491635813 42132219199 80848312517 157441450691 427341080447 2991387563129
• Sum of all divisors σ(n): 3750965821440
• Sum of proper divisors (its aliquot sum) s(n): 759578258311
• 2991387563129 is a deficient number, because the sum of its proper divisors (759578258311) is less than itself. Its deficiency is 2231809304818

Bases of 2991387563129

• Binary: 101011100001111100100101111101010001111001₂
• Hexadecimal: 0x2B87C97D479
• Base-36: 12682X3ZT

Squares and roots of 2991387563129

• 2991387563129 squared (2991387563129²) is 8948399552842856960270641
• 2991387563129 cubed (2991387563129³) is 26768131132283227146658309149312795689
• The square root of 2991387563129 is 1729562.8242793033
• The cube root of 2991387563129 is 14408.6810488947

Scales and comparisons

• 2,991,387,563,129 seconds is equal to 95,116 years, 45 weeks, 2 days, 5 hours, 45 minutes, 29 seconds.
• To count from 1 to 2,991,387,563,129 would take you about two hundred thirty-seven thousand, seven hundred ninety-two 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 2991387563129 cubic inches would be around 1200.7 feet tall.

Recreational maths with 2991387563129

• 2991387563129 backwards is 9213657831992
• The number of decimal digits it has is: 13
• The sum of 2991387563129's digits is 65
• More coming soon!