Properties of the Number 26975

Twenty-Six Thousand Nine Hundred Seventy-Five

Basics

Value: 26974 → 26975 → 26976

Parity: odd

Prime: No

Previous Prime: 26959

Next Prime: 26981

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 5 ² × 13 × 83

Divisors: 1, 5, 13, 25, 65, 83, 325, 415, 1079, 2075

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110100101011111

Octal: 64537

Duodecimal: 1373B

Hexadecimal: 695f

Square: 727650625

Square Root: 164.24067705656842

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

Expansion of (1/(1 - x)) * ∑_k>=0 x^2·k / ∏_j=1..2·k (1 - x^j). A304620

[ (3rd elementary symmetric function of 3,4,...,n+4)/(3+4+...+n+4) ]. A24191

Least k such that k·10ⁿ-9, k·10ⁿ-7, k·10ⁿ-3 and k·10ⁿ-1 are all prime. A64432

Duplicate of A064432. A64972

Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 110-111-011 pattern in any orientation. A146251

Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 110-111-011 pattern in any orientation. A146253

Numbers k such that (86·10^k - 77)/9 is prime. A273783

Number of (n+1)X5 0..1 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) such that rows of b(i,j) and columns of c(i,j) are lexicographically nondecreasing. A203448

a(n) = ∑_k=0..n (k+1) * A026648(n,k). A26975