12638327680

Names of 12638327680

• Cardinal: 12638327680 can be written as Twelve billion, six hundred thirty-eight million, three hundred twenty-seven thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.263832768 × 10¹⁰

Factors of 12638327680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 105636

Divisors of 12638327680

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 8 10 11 16 17 20 22 32 34 40 44 55 64 68 80 85 88 110 128 136 160 170 176 187 220 272 320 340 352 374 440 544 640 680 704 748 880 935 1088 1360 1408 1496 1760 1870 2176 2720 2992 3520 3740 5440 5984 7040 7480 10880 11968 14960 23936 29920 59840 105601 119680 211202 422404 528005 844808 1056010 1161611 1689616 1795217 2112020 2323222 3379232 3590434 4224040 4646444 5808055 6758464 7180868 8448080 8976085 9292888 11616110 13516928 14361736 16896160 17952170 18585776 19747387 23232220 28723472 33792320 35904340 37171552 39494774 46464440 57446944 67584640 71808680 74343104 78989548 92928880 98736935 114893888 143617360 148686208 157979096 185857760 197473870 229787776 287234720 315958192 371715520 394947740 574469440 631916384 743431040 789895480 1148938880 1263832768 1579790960 2527665536 3159581920 6319163840 12638327680
• Sum of all divisors σ(n): 34899348960
• Sum of proper divisors (its aliquot sum) s(n): 22261021280
• 12638327680 is an abundant number, because the sum of its proper divisors (22261021280) is greater than itself. Its abundance is 9622693600

Bases of 12638327680

• Binary: 1011110001010011011001001110000000₂
• Hexadecimal: 0x2F14D9380
• Base-36: 5T0J81S

Squares and roots of 12638327680

• 12638327680 squared (12638327680²) is 159727326547054182400
• 12638327680 cubed (12638327680³) is 2018686292352033695885688832000
• The square root of 12638327680 is 112420.3170249933
• The cube root of 12638327680 is 2329.3238338323

Scales and comparisons

• 12,638,327,680 seconds is equal to 401 years, 44 weeks, 4 days, 22 hours, 34 minutes, 40 seconds.
• To count from 1 to 12,638,327,680 would take you about eight hundred three 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 12638327680 cubic inches would be around 194.1 feet tall.

Recreational maths with 12638327680

• 12638327680 backwards is 08672383621
• The number of decimal digits it has is: 11
• The sum of 12638327680's digits is 46
• More coming soon!