Properties of the Number 28106

Twenty-Eight Thousand One Hundred Six

Basics

Value: 28105 → 28106 → 28107

Parity: even

Prime: No

Previous Prime: 28099

Next Prime: 28109

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 13 × 23 × 47

Divisors: 1, 2, 13, 23, 26, 46, 47, 94, 299, 598

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110111001010

Octal: 66712

Duodecimal: 14322

Hexadecimal: 6dca

Square: 789947236

Square Root: 167.64844168676308

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

Number of Golomb partitions of n. A325858

Positive integers m such that π(m²) = π(j²) + π(k²) for no 0 < j <= k < m. A262408

Expansion of (1/x) * Series_Reversion( x * (1+x) / (1+x+x³)³ ). A372376

a(n) = n⁴/8 + (5·n³)/12 - n²/8 - (5·n)/12 + 1. A226639

Number of length-4 0..n arrays with no repeated value differing from the previous repeated value by other than plus or minus one modulo n+1. A269679

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 118", based on the 5-celled von Neumann neighborhood. A270187

Expansion of x * (d/dx) ∏_k>=0 1/(1 - x^{2^k}). A304909

Engel expansion of ∑_k>=0 1/(1 + k)^k. A63184

Expansion of 1/((1-3x)(1-9x)(1-10x)(1-12x)). A28106

Largest minimal prime in base n (written in base 10). A326609