Properties of the Number 42820

Forty-Two Thousand Eight Hundred Twenty

Basics

Value: 42819 → 42820 → 42821

Parity: even

Prime: No

Previous Prime: 42797

Next Prime: 42821

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 5 × 2141

Divisors: 1, 2, 4, 5, 10, 20, 2141, 4282, 8564, 10705

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011101000100

Octal: 123504

Duodecimal: 20944

Hexadecimal: a744

Square: 1833552400

Square Root: 206.92993983471797

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 + 1, n + 2)-core partitions with odd parts and corresponding order ideals confined to the two outermost diagonals of P_{n + 1, n + 2}. A299099

Numerators of continued fraction convergents to sqrt(941). A42820