Properties of the Number 197

One Hundred Ninety-Seven

Basics

Value: 196 → 197 → 198

Parity: odd

Prime: Yes

Previous Prime: 193

Next Prime: 199

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 197

Divisors: 1, 197

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000101

Octal: 305

Duodecimal: 145

Hexadecimal: c5

Square: 38809

Square Root: 14.035668847618199

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

The prime numbers. A40

Coordination sequence for planar net 3.3.3.3.6 (also called the fsz net). A250120

Powers of primes. Alternatively, 1 and the prime powers (p^k, p prime, k >= 1). A961

Lesser of twin primes. A1359

Prime numbers at the beginning of the 20th century (today 1 is no longer regarded as a prime). A8578

Primes of the form x² + xy + 2y², with·and y nonnegative. A106856

Pythagorean primes: primes of the form 4·k + 1. A2144

Sum of the first n primes. A7504

a(n) = n² + 1. A2522

Prime powers: numbers of the form p^k where p is a prime and k >= 1. A246655

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