Properties of the Number 26506

Twenty-Six Thousand Five Hundred Six

Basics

Value: 26505 → 26506 → 26507

Parity: even

Prime: No

Previous Prime: 26501

Next Prime: 26513

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 29 × 457

Divisors: 1, 2, 29, 58, 457, 914, 13253, 26506

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110011110001010

Octal: 63612

Duodecimal: 1340A

Hexadecimal: 678a

Square: 702568036

Square Root: 162.8066337714775

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 length-rectangular twice-partitions of n. A306319

a(n) = n*(2·n² + 5·n + 1)/2. A162254

Even composite integers m such that A004254(m)² == 1 (mod m). A338314

a(n) = least positive integer > a(n-1) and not a(j)*a(k) + a(k)*a(i) + a(i)*a(j) for 1<=i<=j<=k<=n. A26506