Properties of the Number 26165

Twenty-Six Thousand One Hundred Sixty-Five

Basics

Value: 26164 → 26165 → 26166

Parity: odd

Prime: No

Previous Prime: 26161

Next Prime: 26171

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 5233

Divisors: 1, 5, 5233, 26165

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110011000110101

Octal: 63065

Duodecimal: 13185

Hexadecimal: 6635

Square: 684607225

Square Root: 161.75598906995685

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

Irregular triangle: T(n,k) is the number of permutations in S_n that have exactly k occurrences of the pattern 4213. 0 <= k <= A342646(n). A342840

Number of partitions of 2n whose Ferrers-Young diagram cannot be tiled with dominoes. A304710

a(n) is the number of free polyominoes of width 4 and size n. A354850

Numbers k such that 219·2^k+1 is prime. A32486

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 443", based on the 5-celled von Neumann neighborhood. A272227

Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 19. A51984

Numbers k such that the leaders of weakly increasing runs in the k-th composition in standard order (A066099) are identical. A374633

Integer average digit of squares. A164818

Number of (s(0), s(1), ..., s(n)) such that every s(i) is a nonnegative integer, s(0) = 2, |s(1) - s(0)| = 1, |s(i) - s(i-1)| <= 1 for i >= 2. Also sum of numbers in row n+1 of the array T in A026148. A26165

n² is a sum of 11 consecutive primes. A213915