Properties of the Number 26445

Twenty-Six Thousand Four Hundred Forty-Five

Basics

Value: 26444 → 26445 → 26446

Parity: odd

Prime: No

Previous Prime: 26437

Next Prime: 26449

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 41 × 43

Divisors: 1, 3, 5, 15, 41, 43, 123, 129, 205, 215

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110011101001101

Octal: 63515

Duodecimal: 13379

Hexadecimal: 674d

Square: 699338025

Square Root: 162.61918705983007

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

a(n) = n*(n+2)*(n-2)/3. A77415

Multiplicative closure of twin prime pair products (A037074). A74480

Squarefree products of k primes that are symmetrically distributed around their average. Case k = 4. A294751

a(n) = (2·n+1)*(2·n+3)*(2·n+5)/3. A162540

Perimeters of more than one primitive 120-degree integer triangle. A350047

Numbers n such that the sum of the distinct prime divisors of n that are congruent to 1 mod 4 equals the sum of the distinct prime divisors congruent to 3 mod 4. A215949

Numbers divisible by prime(d) for each digit d in their base-6 representation, none of which may be zero. A256876

Sum of terms of A293630 after generating the sequence for n steps (see comments). A298590

a(n) = ∑_k=0..n (-1)^k * binomial(n+2·k-1,n-k) * Fibonacci(k+1). A390854

Least area/6 of primitive Pythagorean triangles with even leg 4n. A96898