Properties of the Number 26220

Twenty-Six Thousand Two Hundred Twenty

Basics

Value: 26219 → 26220 → 26221

Parity: even

Prime: No

Previous Prime: 26209

Next Prime: 26227

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 5 × 19 × 23

Divisors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 19

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110011001101100

Octal: 63154

Duodecimal: 13210

Hexadecimal: 666c

Square: 687488400

Square Root: 161.92590898309015

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

Triangle T(n, k) = T(n-1, k) + T(n-1, k-1) + (j+4)*prime(j)*T(n-2, k-1) with j=5, read by rows. A153650

Star of David matchstick numbers: a(n) = 6·n*(3·n+1). A45946

Partial sums of second pentagonal numbers with even index (A049453). A51895

a(n) = [2ⁿ csc(1/n)] - [2ⁿ cot(1/n)], where [ ] = floor. A333188

Length of period of Narayana sequence A000930 modulo n-th prime. A271901

The sixth term of the greedy B_n set of natural numbers. A369818

Least area of primitive Pythagorean triangle whose legs differ by A058529(n). A94143

φ(A033631(n)) {φ is the Euler totient function A000010}. A115620

Numbers n such that 36n+11, 36(n+1)+11, 36(n+2)+11 and 36(n+3)+11 are prime. A255608

Least integer k such that the area of the triangle (prime(n), k, k+1) is an integer. A286328