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This page contains science-related numbers.

List of science-related numbers Edit

Chemistry-related numbers Edit

  • The number of possible isotopical isomers of Mirex is (2^22+2^12+2^11+2^11)/4, which amounts to 1,050,624.
    • Its prime factorization is 211 × 33 × 19.
  • The number of possible isotopical isomers of 2,3,7,8-Tetrachlorodibenzofuran is (2^20*3+2^10*3)/2, which amounts to 1,574,400.
    • Its prime factorization is 29 × 3 × 52 × 41.
  • On July 10, 1976, the most poisonous chemical substance (namely, 2,3,7,8-Tetrachlorodibenzo-p-dioxin) was the cause of the Seveso disaster. The number of possible isotopical isomers of this substance is (2^20*3^2+2^10*3^2+2^10*3+2^10*3)/4, which amounts to 2,363,136.
    • Its prime factorization is 28 × 3 × 17 × 181.
  • The number of possible isotopical isomers of DDT is ((2^11+2^7)/2)^2*(2^6+2^4+2^4)/3, which amounts to 37,879,808.
    • Its prime factorization is 217 × 172.
  • The number of possible isotopical isomers of o,p' -DDT is 2*2^11*(2^11+2^7)/2*(2^6+2^4+2^4)/3, which amounts to 142,606,336.
    • Its prime factorization is 223 × 17.

Approximations of these numbers Edit

Approximations of 299,792,458
Notation Approximation
Scientific notation \(2.99792458*10^8\) (exact)
Arrow notation \(7 \uparrow 10<n<26 \uparrow 6\)
Arrow notation (more precise) \(669 \uparrow 3<n<670 \uparrow 3\)
Arrow notation (more precise) \(17,314 \uparrow 2<n<17,315 \uparrow 2\)
Hyper-E notation \(3E8\)
Factorial \(12!\)
Fast-growing hierarchy \(f_2(27)\)
Hardy hierarchy \(H_{\omega 18}(24)\)
Slow-growing hierarchy \(g_{\omega^8 3}(10)\)
Notation Array Notation \((10\{1,3\}8)\)

Sources Edit

  1. Definition of Second