Properties of the Number 84821

Eighty-Four Thousand Eight Hundred Twenty-One

Basics

Value: 84820 → 84821 → 84822

Parity: odd

Prime: No

Previous Prime: 84811

Next Prime: 84827

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 11 ² × 701

Divisors: 1, 11, 121, 701, 7711, 84821

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100101101010101

Octal: 245525

Duodecimal: 41105

Hexadecimal: 14b55

Square: 7194602041

Square Root: 291.240450487222

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 n X 2 0..4 arrays with each element equal to the number its horizontal and vertical neighbors unequal to itself. A195956

Odd numbers m such that σ(m) > m + φ(m), where σ=A000203 is the divisor sum and φ=A000010 the totient. A84821