12991497608

Names of 12991497608

• Cardinal: 12991497608 can be written as Twelve billion, nine hundred ninety-one million, four hundred ninety-seven thousand, six hundred eight.

Scientific notation

• Scientific notation: 1.2991497608 × 10¹⁰

Factors of 12991497608

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 203

Divisors of 12991497608

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 8 19 31 38 62 76 124 151 152 248 302 361 589 604 722 961 1178 1208 1444 1922 2356 2869 2888 3844 4681 4712 5738 7688 9362 11191 11476 18259 18724 22382 22952 29791 36518 37448 44764 54511 59582 73036 88939 89528 109022 119164 145111 146072 177878 218044 238328 290222 346921 355756 436088 566029 580444 693842 711512 1132058 1160888 1387684 1689841 2264116 2757109 2775368 3379682 4498441 4528232 5514218 6759364 8996882 10754551 11028436 13518728 17993764 21509102 22056872 35987528 43018204 52385071 85470379 86036408 104770142 170940758 209540284 341881516 419080568 683763032 1623937201 3247874402 6495748804 12991497608
• Sum of all divisors σ(n): 26741445120
• Sum of proper divisors (its aliquot sum) s(n): 13749947512
• 12991497608 is an abundant number, because the sum of its proper divisors (13749947512) is greater than itself. Its abundance is 758449904

Bases of 12991497608

• Binary: 1100000110010110101000010110001000₂
• Hexadecimal: 0x3065A8588
• Base-36: 5YUSVPK

Squares and roots of 12991497608

• 12991497608 squared (12991497608²) is 168779010098669721664
• 12991497608 cubed (12991497608³) is 2192692105977475532979881779712
• The square root of 12991497608 is 113980.2509560319
• The cube root of 12991497608 is 2350.8219613291

Scales and comparisons

• 12,991,497,608 seconds is equal to 413 years, 4 weeks, 4 days, 13 hours, 20 minutes, 8 seconds.
• To count from 1 to 12,991,497,608 would take you about eight hundred twenty-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 12991497608 cubic inches would be around 195.9 feet tall.

Recreational maths with 12991497608

• 12991497608 backwards is 80679419921
• The number of decimal digits it has is: 11
• The sum of 12991497608's digits is 56
• More coming soon!