Properties of the Number 20450

Twenty Thousand Four Hundred Fifty

Basics

Value: 20449 → 20450 → 20451

Parity: even

Prime: No

Previous Prime: 20443

Next Prime: 20477

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 × 5 ² × 409

Divisors: 1, 2, 5, 10, 25, 50, 409, 818, 2045, 4090

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100111111100010

Octal: 47742

Duodecimal: BA02

Hexadecimal: 4fe2

Square: 418202500

Square Root: 143.0034964607509

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 that are the sum of 3 nonzero 6th powers. A3359

Ruth-Aaron numbers (2): sum of prime divisors of n = sum of prime divisors of n+1 (both taken with multiplicity). A39752

Numbers of the form (square + 1) that are not squarefree. A124809

Quadrinomial coefficients: C(2+n,n) + C(3+n,n) + C(4+n,n). A5718

Numbers of the form m² + 1 that can be expressed in more than one way as j² + k² with j > k > 1. A299708

Numbers k such that k² and k³ have the same set of digits. A29797

Sum of distinct nonzero sixth powers. A194769

Number of 4-tuples (w,x,y,z) with all terms in {1,...,n} and w·x>2·y*z. A211797

Numbers which are the sums of consecutive sixth powers. A217846

Number of unbalanced partitions of n: the largest part is not equal to the number of parts. A236634