129799678160

Names of 129799678160

• Cardinal: 129799678160 can be written as One hundred twenty-nine billion, seven hundred ninety-nine million, six hundred seventy-eight thousand, one hundred sixty.

Scientific notation

• Scientific notation: 1.2979967816 × 10¹¹

Factors of 129799678160

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 15846

Divisors of 129799678160

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 47 80 94 188 235 376 470 752 940 1880 2621 3760 5242 10484 13105 13171 20968 26210 26342 41936 52420 52684 65855 104840 105368 123187 131710 209680 210736 246374 263420 492748 526840 615935 619037 985496 1053680 1231870 1238074 1970992 2463740 2476148 3095185 4927480 4952296 6190370 9854960 9904592 12380740 24761480 34521191 49522960 69042382 138084764 172605955 276169528 345211910 552339056 690423820 1380847640 1622495977 2761695280 3244991954 6489983908 8112479885 12979967816 16224959770 25959935632 32449919540 64899839080 129799678160
• Sum of all divisors σ(n): 308346193152
• Sum of proper divisors (its aliquot sum) s(n): 178546514992
• 129799678160 is an abundant number, because the sum of its proper divisors (178546514992) is greater than itself. Its abundance is 48746836832

Bases of 129799678160

• Binary: 1111000111000101010011110100011010000₂
• Hexadecimal: 0x1E38A9E8D0
• Base-36: 1NMNDKNK

Squares and roots of 129799678160

• 129799678160 squared (129799678160²) is 16847956450439580985600
• 129799678160 cubed (129799678160³) is 2186859324920753602456135594496000
• The square root of 129799678160 is 360277.2240372683
• The cube root of 129799678160 is 5063.1936563597

Scales and comparisons

• 129,799,678,160 seconds is equal to 4,127 years, 11 weeks, 6 days, 2 hours, 9 minutes, 20 seconds.
• To count from 1 to 129,799,678,160 would take you about eight thousand, two hundred fifty-four 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 129799678160 cubic inches would be around 421.9 feet tall.

Recreational maths with 129799678160

• 129799678160 backwards is 061876997921
• The number of decimal digits it has is: 12
• The sum of 129799678160's digits is 65
• More coming soon!