12521389872

Names of 12521389872

• Cardinal: 12521389872 can be written as Twelve billion, five hundred twenty-one million, three hundred eighty-nine thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.2521389872 × 10¹⁰

Factors of 12521389872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 10724

Divisors of 12521389872

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 48 67 134 201 268 379 402 536 758 804 1072 1137 1516 1608 2274 3032 3216 4548 6064 9096 10273 18192 20546 25393 30819 41092 50786 61638 76179 82184 101572 123276 152358 164368 203144 246552 304716 406288 493104 609432 688291 1218864 1376582 2064873 2753164 3893467 4129746 5506328 7786934 8259492 11012656 11680401 15573868 16518984 23360802 31147736 33037968 46721604 62295472 93443208 186886416 260862289 521724578 782586867 1043449156 1565173734 2086898312 3130347468 4173796624 6260694936 12521389872
• Sum of all divisors σ(n): 32919539840
• Sum of proper divisors (its aliquot sum) s(n): 20398149968
• 12521389872 is an abundant number, because the sum of its proper divisors (20398149968) is greater than itself. Its abundance is 7876760096

Bases of 12521389872

• Binary: 1011101010010101010011111100110000₂
• Hexadecimal: 0x2EA553F30
• Base-36: 5R2WU9C

Squares and roots of 12521389872

• 12521389872 squared (12521389872²) is 156785204326624176384
• 12521389872 cubed (12521389872³) is 1963168669534842542124959182848
• The square root of 12521389872 is 111899.0164031839
• The cube root of 12521389872 is 2322.1174356613

Scales and comparisons

• 12,521,389,872 seconds is equal to 398 years, 7 weeks, 2 days, 11 hours, 51 minutes, 12 seconds.
• To count from 1 to 12,521,389,872 would take you about seven hundred ninety-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 12521389872 cubic inches would be around 193.5 feet tall.

Recreational maths with 12521389872

• 12521389872 backwards is 27898312521
• 12521389872 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12521389872's digits is 48
• More coming soon!