Properties of the Number 42178

Forty-Two Thousand One Hundred Seventy-Eight

Basics

Value: 42177 → 42178 → 42179

Parity: even

Prime: No

Previous Prime: 42169

Next Prime: 42179

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 21089

Divisors: 1, 2, 21089, 42178

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010011000010

Octal: 122302

Duodecimal: 204AA

Hexadecimal: a4c2

Square: 1778983684

Square Root: 205.37283169883986

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 tilings of a 4 X n rectangle using integer-sided rectangular tiles of area 4. A220123

Coefficients in expansion of 1/(1 + 2·x - 3·x³). A317499

G.f. ∑_n=-oo..+oo xⁿ * (1 + xⁿ)^n³. A386669

Numerators of continued fraction convergents to sqrt(614). A42178

Number of nX5 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 0 and 1 1 1 vertically. A207892