Properties of the Number 71212

Seventy-One Thousand Two Hundred Twelve

Basics

Value: 71211 → 71212 → 71213

Parity: even

Prime: No

Previous Prime: 71209

Next Prime: 71233

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 19 × 937

Divisors: 1, 2, 4, 19, 38, 76, 937, 1874, 3748, 17803

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001011000101100

Octal: 213054

Duodecimal: 35264

Hexadecimal: 1162c

Square: 5071148944

Square Root: 266.85576628583465

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

Number of unoriented polyomino rings of length 4n with fourfold rotational symmetry. A324407

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 king-move adjacent elements, with upper left element zero. A298230

Number of partitions p of n such that the multiplicity of min(p)*max(p) is a part. A240498

σ(n) plus the n-th prime gives a cube. A114081

Number of nX5 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 king-move adjacent elements, with upper left element zero. A298227

Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 king-move adjacent elements, with upper left element zero. A298229

Number of 4 X n 0..1 arrays with every element equal to 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302281

Number of labeled cyclic trees with n nodes such that the root is smaller than all its children. A71212