Properties of the Number 211

Two Hundred Eleven

Basics

Value: 210 → 211 → 212

Parity: odd

Prime: Yes

Previous Prime: 199

Next Prime: 223

Digit Sum: 4

Digital Root: 4

Palindrome: No

Factorization: 211

Divisors: 1, 211

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010011

Octal: 323

Duodecimal: 157

Hexadecimal: d3

Square: 44521

Square Root: 14.52583904633395

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: Yes

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

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

Central polygonal numbers (the Lazy Caterer's sequence): n(n+1)/2 + 1; or, maximal number of pieces formed when slicing a pancake with n cuts. A124

Primes of the form 4·k + 3. A2145

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

Numbers in base 3. A7089

Central polygonal numbers: a(n) = n² - n + 1. A2061

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