Properties of the Number 7213

Seven Thousand Two Hundred Thirteen

Basics

Value: 7212 → 7213 → 7214

Parity: odd

Prime: Yes

Previous Prime: 7211

Next Prime: 7219

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 7213

Divisors: 1, 7213

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110000101101

Octal: 16055

Duodecimal: 4211

Hexadecimal: 1c2d

Square: 52027369

Square Root: 84.92938243034621

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

Coordination sequence for 3D uniform tiling formed by stacking parallel layers of the 4.8.8 2D tiling (cf. A008576). A299259

Prime numbers ending in the prime number 13. A244763

Primes with first digit 7. A45713

Primes p=prime(k) of level (1,2), i.e., such that A118534(k) = prime(k-2). A117876

Primes such that the sum of the predecessor and successor primes is divisible by 37. A113156

Smaller of two consecutive prime numbers such that p1·p2·d + d = average of twin prime pairs, d (δ) = p2 - p1. A153376

Prime numbers containing the string 13. A166573

Smallest positive number that can be written as sum of distinct Fibonacci numbers in n ways. A13583

Least prime of the form prime(n)² + k², or 0 if none. A240130

Primes from merging of 4 successive digits in decimal expansion of Catalan's constant. A104918