Properties of the Number -216421

Two Hundred Sixteen Thousand Four Hundred Twenty-One

Basics

Value: -216422 → -216421 → -216420

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 216421

Divisors: 1, 216421

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -110100110101100101

Octal: -646545

Duodecimal: -A52B1

Hexadecimal: -34d65

Square: 46838049241

Square Root: 465.21070494991835

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

Primes whose product of digits equals the number of digits times the sum of digits. A64155

Initial primes of four consecutive primes with consecutive gaps 10, 20, 30. A351662