Properties of the Number 26797

Twenty-Six Thousand Seven Hundred Ninety-Seven

Basics

Value: 26796 → 26797 → 26798

Parity: odd

Prime: No

Previous Prime: 26783

Next Prime: 26801

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 127 × 211

Divisors: 1, 127, 211, 26797

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110100010101101

Octal: 64255

Duodecimal: 13611

Hexadecimal: 68ad

Square: 718079209

Square Root: 163.69789247268884

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

The number of regions formed when every pair of n points, placed at the vertices of a regular n-gon, are connected by a circle and where the points lie at the ends of the circle's diameter. A358782

Number T(n,k) of entries in the k-th cycles of all permutations of [n] when cycles are ordered by decreasing lengths (and increasing smallest elements); triangle T(n,k), n>=1, 1<=k<=n, read by rows. A322384

a(n) = T(2·n, n), array T as in A047080. A47085

For two strings of length n, this is the number of pairwise alignments that do not have an insertion adjacent to a deletion. (Duplicate of A047085.) A171155

Let G_n denote the planar graph defined in A358746 with the addition, if n is odd, of the circle containing the initial n points; sequence gives the number of regions in G_n. A370976

Numbers n such that (nⁿ-2)/(n-2) is an integer. A242787

Least positive integer multiples of angle·such that their direction cosines form a unit vector: ∑_k>0 cos(a(k)*x)² = 1, where a(1)=1 and x=2/3. A80140

a(n) = n³ - 7·n + 7. A106734

Positions of 2 in sequence A217916. A217918

Number of entries in the third cycles of all permutations of [n] when cycles are ordered by decreasing lengths. A332852