12789138648

Names of 12789138648

• Cardinal: 12789138648 can be written as Twelve billion, seven hundred eighty-nine million, one hundred thirty-eight thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 1.2789138648 × 10¹⁰

Factors of 12789138648

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3726468

Divisors of 12789138648

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 11 12 13 22 24 26 33 39 44 52 66 78 88 104 132 143 156 264 286 312 429 572 858 1144 1716 3432 3726439 7452878 11179317 14905756 22358634 29811512 40990829 44717268 48443707 81981658 89434536 96887414 122972487 145331121 163963316 193774828 245944974 290662242 327926632 387549656 491889948 532880777 581324484 983779896 1065761554 1162648968 1598642331 2131523108 3197284662 4263046216 6394569324 12789138648
• Sum of all divisors σ(n): 37562515200
• Sum of proper divisors (its aliquot sum) s(n): 24773376552
• 12789138648 is an abundant number, because the sum of its proper divisors (24773376552) is greater than itself. Its abundance is 11984237904

Bases of 12789138648

• Binary: 1011111010010010101100010011011000₂
• Hexadecimal: 0x2FA4AC4D8
• Base-36: 5VIBMJC

Squares and roots of 12789138648

• 12789138648 squared (12789138648²) is 163562067357767267904
• 12789138648 cubed (12789138648³) is 2091817956992000608940416353792
• The square root of 12789138648 is 113089.0739550023
• The cube root of 12789138648 is 2338.5523619653

Scales and comparisons

• 12,789,138,648 seconds is equal to 406 years, 34 weeks, 10 hours, 30 minutes, 48 seconds.
• To count from 1 to 12,789,138,648 would take you about eight hundred thirteen 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 12789138648 cubic inches would be around 194.9 feet tall.

Recreational maths with 12789138648

• 12789138648 backwards is 84683198721
• The number of decimal digits it has is: 11
• The sum of 12789138648's digits is 57
• More coming soon!