Properties of the Number -216211

Two Hundred Sixteen Thousand Two Hundred Eleven

Basics

Value: -216212 → -216211 → -216210

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 216211

Divisors: 1, 216211

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110100110010010011

Octal: -646223

Duodecimal: -A5157

Hexadecimal: -34c93

Square: 46747196521

Square Root: 464.98494599287835

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

Smallest odd prime number Q such that Q·2^P-1 is also prime with P Mersenne prime exponent A000043(n). A249383

Primes p that set a new record for the size of the smallest b > 1 such that b^p-1 == 1 (mod p²). A287147