Properties of the Number 42789

Forty-Two Thousand Seven Hundred Eighty-Nine

Basics

Value: 42788 → 42789 → 42790

Parity: odd

Prime: No

Previous Prime: 42787

Next Prime: 42793

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 17 × 839

Divisors: 1, 3, 17, 51, 839, 2517, 14263, 42789

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011100100101

Octal: 123445

Duodecimal: 20919

Hexadecimal: a725

Square: 1830898521

Square Root: 206.85502169393905

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

a(n) = n*(n + 1)*(11·n² + 11·n - 10)/24. A264854

Numbers k such that A360327(k) = A360327(k+1) > 1. A360358

Denominators of continued fraction convergents to sqrt(925). A42789

Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and column sum not 1 3 6 or 8 and every diagonal and antidiagonal sum 1 3 6 or 8. A252046