Properties of the Number 80438

Eighty Thousand Four Hundred Thirty-Eight

Basics

Value: 80437 → 80438 → 80439

Parity: even

Prime: No

Previous Prime: 80429

Next Prime: 80447

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 37 × 1087

Divisors: 1, 2, 37, 74, 1087, 2174, 40219, 80438

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: 10011101000110110

Octal: 235066

Duodecimal: 3A672

Hexadecimal: 13a36

Square: 6470271844

Square Root: 283.6159374929413

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

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum 2 4 5 or 7 and every diagonal and antidiagonal sum not 2 4 5 or 7. A251923

Numbers k such that σ(σ(k) - k) = φ(σ(k) + k). A74886

Number of (n+2)X(4+2) 0..3 arrays with every 3X3 subblock row and column sum 2 4 5 or 7 and every diagonal and antidiagonal sum not 2 4 5 or 7. A251919

Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and column sum 2 4 5 or 7 and every diagonal and antidiagonal sum not 2 4 5 or 7. A251920

Smallest square obtained by inserting one or more digits between every pair of consecutive digits of n². A80438