Properties of the Number -24031

Twenty-Four Thousand Thirty-One

Basics

Value: -24032 → -24031 → -24030

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 7 × 3433

Divisors: 1, 7, 3433, 24031

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -101110111011111

Octal: -56737

Duodecimal: -11AA7

Hexadecimal: -5ddf

Square: 577488961

Square Root: 155.0193536304419

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

Semiprimes in A003215. A113530

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 4 6 or 7. A252139

Principal diagonal of the convolution array A213778. A213779

Expansion of (5 - 9·x + 6·x²)/(1-x)⁴. A80957

a(n) = 3·n⁴ + 6·n³ - 3·n + 1. A181475

Number of (n+2) X (2+2) 0..3 arrays with every 3 X 3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 4 6 or 7. A252133

Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 4 6 or 7. A252138

Number of symmetric bushes with n edges. I.e., number of ordered trees with n edges, no non-root vertices of outdegree 1 and symmetrical with respect to the vertical axis passing through the root. A125189

a(n)=a(n-1)+a(n-2)+a(n-3)+2a(n-4); a(0)=0,a(1)=1,a(2)=3,a(3)=7. A139814

E.g.f. is reversion of (2(1+x)log(1+x)+x²+2x)/( (2+x)²(1+x) ). A140983