Properties of the Number 20514

Twenty Thousand Five Hundred Fourteen

Basics

Value: 20513 → 20514 → 20515

Parity: even

Prime: No

Previous Prime: 20509

Next Prime: 20521

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 13 × 263

Divisors: 1, 2, 3, 6, 13, 26, 39, 78, 263, 526

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 101000000100010

Octal: 50042

Duodecimal: BA56

Hexadecimal: 5022

Square: 420824196

Square Root: 143.22709240922262

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 of forests with n unlabeled nodes. A5195

a(n) = T(2n, n-2), T given by A026780. A26783

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock sum greater than 4. A184497

Sum of distinct nonzero sixth powers. A194769

Numbers which are the sums of consecutive sixth powers. A217846

Expansion of the o.g.f. (1 + 8·x + 10·x² + 8·x³ + x⁴)/((1 - x)⁴*(1 + x)²). A342362

Number of partitions satisfying cn(2,5) < cn(1,5) + cn(4,5) and cn(3,5) < cn(1,5) + cn(4,5). A39889

Denominators of average numbers of trees in a forest on n nodes. A95132

Number of (n+1)X3 0..2 arrays with every 2X2 subblock sum greater than 4. A184490

Number of (n+1)X4 0..2 arrays with every 2X2 subblock sum greater than 4. A184491