Properties of the Number 42471

Forty-Two Thousand Four Hundred Seventy-One

Basics

Value: 42470 → 42471 → 42472

Parity: odd

Prime: No

Previous Prime: 42467

Next Prime: 42473

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 11 ² × 13

Divisors: 1, 3, 9, 11, 13, 27, 33, 39, 99, 117

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010111100111

Octal: 122747

Duodecimal: 206B3

Hexadecimal: a5e7

Square: 1803785841

Square Root: 206.08493394714714

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

Values of·such that x² + y² = 41ⁿ with·and y coprime and 0 < x < y. A230743

The Wiener index of the meta-polyphenyl chain with n hexagons (see the Dou et al. and the Deng references). A216110

Number of alternating sign n X n matrices symmetric with respect to both diagonals. A5162

Expansion of ∏_m>=1 (1-m·q^m)²⁷. A22687

Number of collinear point triples on a centered hexagonal grid of size n. A241222

a(n) = ∏_k=0..n (3·k)!/(n+k)!. A266091

a(n) = H(n-1, n, n+1) where H(a, b, c) = (a + b + c)*(a + b - c)*(b + c - a)*(c + a - b) is Heron's polynomial. A339488

Concatenations C1 and C2 and C3 are all prime (see the comment lines). A34818

Number of intersections of at least four edges in a cube of n X n X n smaller cubes. A126562

Denominators of continued fraction convergents to sqrt(763). A42471