Properties of the Number 26069

Twenty-Six Thousand Sixty-Nine

Basics

Value: 26068 → 26069 → 26070

Parity: odd

Prime: No

Previous Prime: 26053

Next Prime: 26083

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 131 × 199

Divisors: 1, 131, 199, 26069

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010111010101

Octal: 62725

Duodecimal: 13105

Hexadecimal: 65d5

Square: 679592761

Square Root: 161.458973117012

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) = n³ - n² - n - 1. A83074

Lucas pseudoprimes. A217120

Semiprimes whose prime factors are of equal binary length and which differ from each other in exactly two bit positions. A261074

Squarefree semiprimes of the form (2·p - 3) * (3·p - 2), p prime. A259758

Number of self-inverse permutations of [2n] with longest increasing subsequence of length n. A267436

Number of free hexagonal polygons of symmetry class C_2v and area n. A120991

Solution (a(n)) of the complementary equation a(n) = 2·a(n-1) - a(n-2) + b(n-1) + b(n); see Comments. A305330

Starting positions of strings of three 9's in the decimal expansion of π. A83642

Number of self-inverse permutations in S_n with longest increasing subsequence of length 6. A217326

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, -1, 1), (-1, 1, -1), (1, 0, -1), (1, 0, 1)}. A148547