Properties of the Number 20026

Twenty Thousand Twenty-Six

Basics

Value: 20025 → 20026 → 20027

Parity: even

Prime: No

Previous Prime: 20023

Next Prime: 20029

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 × 17 × 19 × 31

Divisors: 1, 2, 17, 19, 31, 34, 38, 62, 323, 527

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100111000111010

Octal: 47072

Duodecimal: B70A

Hexadecimal: 4e3a

Square: 401040676

Square Root: 141.5132502630054

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

Numbers k such that σ(k) = 4*φ(k). A68390

Sum of squares of first n positive integers congruent to 1 mod 3. A24215

Numbers which are the sum of two positive cubes and divisible by 17. A99178

a(n) = n*(n + 7)*(n + 14)*(n + 21)/24. A264447

Numbers which are the sum of two positive cubes and divisible by 31. A102658

The generalized Conway-Guy sequence w^-6. A195684

Squarefree balanced numbers (i.e., squarefree members of A020492). A78557

Integers n such that σ(n)/φ(n) is a perfect square. A293391

Numbers n such that the arithmetic, geometric and harmonic means of φ(n) and σ(n) are all integers. A65146

Number of partitions in all twice partitions of n where the first partition is strict. A327552