Properties of the Number 30971

Thirty Thousand Nine Hundred Seventy-One

Basics

Value: 30970 → 30971 → 30972

Parity: odd

Prime: Yes

Previous Prime: 30949

Next Prime: 30977

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 30971

Divisors: 1, 30971

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100011111011

Octal: 74373

Duodecimal: 15B0B

Hexadecimal: 78fb

Square: 959202841

Square Root: 175.9857948812915

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

T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 2,1,3,0,4 for x=0,1,2,3,4. A196696

Primes of form k² - 5. A28877

T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 2,1,4,0,3 for x=0,1,2,3,4. A196729

Emirps whose internal digits are also an emirp. A225235

Hyperartiads. A270798

Primes of the form p·q+4 where p and q are consecutive primes. A63442

Number of nX4 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 2,1,3,0,4 for x=0,1,2,3,4. A196692

Number of n X 5 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 2,1,3,0,4 for x=0,1,2,3,4. A196693

Number of nX5 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 2,1,4,0,3 for x=0,1,2,3,4. A196726

Prime p such that p⁵ + p³ + p - 4 and p⁵ + p³ + p + 4 are primes. A243900