Properties of the Number 28112

Twenty-Eight Thousand One Hundred Twelve

Basics

Value: 28111 → 28112 → 28113

Parity: even

Prime: No

Previous Prime: 28111

Next Prime: 28123

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ⁴ × 7 × 251

Divisors: 1, 2, 4, 7, 8, 14, 16, 28, 56, 112

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110111010000

Octal: 66720

Duodecimal: 14328

Hexadecimal: 6dd0

Square: 790284544

Square Root: 167.6663353210775

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) is the concatenation of n and 4n. A19552

a(n) = 36·n² - 4·n (n>=1). A304380

Number of (w,x,y,z) with all terms in {0,...,n} and 2w=max{w,x,y,z}-min{w,x,y,z}. A212757

Expansion of 1/(1 - x - x²/(1 + x²/(1 + x³/(1 + x⁴/(1 + x⁵/(1 + ...)))))), a continued fraction. A302016

Number of 3-unbalanced strings of length n (= 2ⁿ - A027557(n)). A27558

Trajectory of 3 under map n->33n+1 if n odd, n->n/2 if n even. A37114

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 1), (0, 0, 1), (1, -1, 1), (1, 0, 0), (1, 1, -1)}. A150214

Expansion of 1/((1-4x)(1-5x)(1-6x)(1-10x)). A28112