Properties of the Number 26106

Twenty-Six Thousand One Hundred Six

Basics

Value: 26105 → 26106 → 26107

Parity: even

Prime: No

Previous Prime: 26099

Next Prime: 26107

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 19 × 229

Divisors: 1, 2, 3, 6, 19, 38, 57, 114, 229, 458

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010111111010

Octal: 62772

Duodecimal: 13136

Hexadecimal: 65fa

Square: 681523236

Square Root: 161.5735126807609

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) = -6 + 2ⁿ⁺¹*(3 - 2·n + n²). A36800

Total height of all rooted trees on n labeled nodes. A1854

a(n) = 3·n*(6·n + 1). A144314

Triangular numbers with sum of digits = 15. A68130

a(n) = smallest k where (10^k+1)=0 mod prime(n)², or 0 if no such k exists. A86981

Sum of tetrahedral numbers A000292(k), with k in the reduced residue system modulo n. A189918

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = ∑_j=0..n k^j * j^k. A368486

Triangular numbers that are the product of four distinct primes. A333771

Triangular numbers whose sum of prime factors (with repetition) is also triangular. A76169

a(n) = p(n)*(p(n)-1)/2 where p(n) = upper member of n-th pair of twin primes. A82669