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197 is the number following 196 and preceding 198[1].

Properties[]

  • 197 is a centered heptagonal number.[9]
  • 197 is deficient.[10]


Approximations[]

Notation Lower bound Upper bound
Up-arrow notation 14 ↑ 2
Scientific notation 1.97 x 102 1.971 x 102
Slow-growing hierarchy \(g_{\omega^{\omega}}(3)\) \(g_{\omega^{\omega}}(4)\)
Copy notation 1[3] 2[3]
Chained arrow notation 14 → 2
Bowers' Exploding Array Function/Bird's array notation {14,2}
Fast-growing hierarchy f1(97) f1(98)
Hardy hierarchy Hω(98) Hω(99)
Middle-growing hierarchy m(ω,7) m(ω,8)
Hyper-E notation E2.2945
Hyper-E notation (non-10 base) \(E[14]2\)
Hyperfactorial array notation 5! 6!
X-Sequence Hyper-Exponential Notation 14{1}2
Steinhaus-Moser Notation 3[3] 4[3]
PlantStar's Debut Notation [1] [2]
H* function H(-0.3) H(-0.2)
Bashicu matrix system with respect to version 4 (0)[14] (0)[15]
m(n) map m(1)(3) m(1)(4)
s(n) map \(s(1)(\lambda x . x+1)(97)\) \(s(1)(\lambda x . x+1)(98)\)

Sources[]