Properties of the Number 26799

Twenty-Six Thousand Seven Hundred Ninety-Nine

Basics

Value: 26798 → 26799 → 26800

Parity: odd

Prime: No

Previous Prime: 26783

Next Prime: 26801

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 8933

Divisors: 1, 3, 8933, 26799

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110100010101111

Octal: 64257

Duodecimal: 13613

Hexadecimal: 68af

Square: 718186401

Square Root: 163.70400117284856

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

T(n, k) = ∑_j=k..n binomial(n, j)*E1(j, j-k), where E1 are the Eulerian numbers A173018. Triangle read by rows, T(n, k) for 0 <= k <= n. A46802

Wiener index of a benzenoid consisting of a spiral chain of n hexagons (s=1; see the Gutman et al. reference). A193391

Semiprimes with strictly increasing product of digits. A246569

Numbers n such that sum of first n consecutive prime numbers is pandigital (includes all 10 digits exactly once). A49442

Number of permutations of length n with no consecutive triples i,...i+r,...i+2r for all positive r, and for all equal spacings d. A174084

2·a(n) is the start of 3 consecutive numbers (even-odd-even) that are sums of divisors, i.e., terms of A000203. A342555

Numbers k such that the sum of the first k consecutive prime numbers is pandigital (includes all 10 digits at least once). A228468

Semiprimes at which the Chebyshev bias of semiprimes == 3 (mod 4) and == 1 (mod 4) becomes positive. A196937

a(n) = a(n-1) + a(n - 1 minus the number of terms of a(k) == n (mod 3) so far). A60730

Triangle read by rows, T(n,k) = ∑_j=0..n (-1)^n-j*C(-j-1,-n-1)*E1(j,k), E1 the Eulerian numbers A173018, for n >= 0 and 0 <= k <= n. A272098