12911067988

Names of 12911067988

• Cardinal: 12911067988 can be written as Twelve billion, nine hundred eleven million, sixty-seven thousand, nine hundred eighty-eight.

Scientific notation

• Scientific notation: 1.2911067988 × 10¹⁰

Factors of 12911067988

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 639

Divisors of 12911067988

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 7 13 14 26 28 52 71 83 91 142 166 169 182 284 332 338 364 463 497 581 676 923 926 994 1079 1162 1183 1846 1852 1988 2158 2324 2366 3241 3692 4316 4732 5893 6019 6461 6482 7553 11786 11999 12038 12922 12964 14027 15106 23572 23998 24076 25844 28054 30212 32873 38429 41251 42133 47996 56108 65746 76609 76858 78247 82502 83993 84266 98189 131492 153218 153716 156494 165004 167986 168532 196378 230111 269003 306436 312988 335972 392756 427349 460222 499577 536263 538006 547729 854698 920444 995917 999154 1072526 1076012 1095458 1709396 1991834 1998308 2145052 2190916 2728459 2991443 3497039 3983668 5456918 5555537 5982886 6494501 6971419 6994078 10913836 11111074 11965772 12989002 13942838 13988156 19099213 22222148 25978004 27885676 35469967 38198426 38888759 45461507 70939934 76396852 77777518 90923014 141879868 155555036 181846028 248289769 461109571 496579538 922219142 993159076 1844438284 3227766997 6455533994 12911067988
• Sum of all divisors σ(n): 28758675456
• Sum of proper divisors (its aliquot sum) s(n): 15847607468
• 12911067988 is an abundant number, because the sum of its proper divisors (15847607468) is greater than itself. Its abundance is 2936539480

Bases of 12911067988

• Binary: 1100000001100011110100001101010100₂
• Hexadecimal: 0x3018F4354
• Base-36: 5XIWZTG

Squares and roots of 12911067988

• 12911067988 squared (12911067988²) is 166695676590758368144
• 12911067988 cubed (12911067988³) is 2152219213768941343587117374272
• The square root of 12911067988 is 113626.8805696961
• The cube root of 12911067988 is 2345.9606472609

Scales and comparisons

• 12,911,067,988 seconds is equal to 410 years, 27 weeks, 4 days, 15 hours, 46 minutes, 28 seconds.
• To count from 1 to 12,911,067,988 would take you about eight hundred twenty-one 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 12911067988 cubic inches would be around 195.5 feet tall.

Recreational maths with 12911067988

• 12911067988 backwards is 88976011921
• 12911067988 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12911067988's digits is 52
• More coming soon!