Properties of the Number 42279

Forty-Two Thousand Two Hundred Seventy-Nine

Basics

Value: 42278 → 42279 → 42280

Parity: odd

Prime: No

Previous Prime: 42257

Next Prime: 42281

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 17 × 829

Divisors: 1, 3, 17, 51, 829, 2487, 14093, 42279

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010100100111

Octal: 122447

Duodecimal: 20573

Hexadecimal: a527

Square: 1787513841

Square Root: 205.61857892709986

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 T(n,k) of n-step walks on cubic lattice starting at (0,0,0), ending at (0,k,n-k), remaining in the first (nonnegative) octant and using steps (0,0,1), (0,1,0), (1,0,0), (-1,1,1), (1,-1,1), and (1,1,-1); triangle T(n,k), n>=0, 0<=k<=n, read by rows. A328300

Expansion of ∏_k>=1 1/((1 - x^k²)*(1 - x^k)). A369520

a(n) = (2·n³ + 5·n² + 5·n)/2. A162267

Denominators of continued fraction convergents to sqrt(665). A42279