Properties of the Number 17145

Seventeen Thousand One Hundred Forty-Five

Basics

Value: 17144 → 17145 → 17146

Parity: odd

Prime: No

Previous Prime: 17137

Next Prime: 17159

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 × 127

Divisors: 1, 3, 5, 9, 15, 27, 45, 127, 135, 381

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100001011111001

Octal: 41371

Duodecimal: 9B09

Hexadecimal: 42f9

Square: 293951025

Square Root: 130.93891705677117

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

Digitally balanced numbers in base 4: equal numbers of 0's, 1's, ... 3's. A49355

Numbers n such that φ(n) = φ(n+12) and n is not divisible by 2. A217141

Expansion of e.g.f. sec(x·tan(x/2)) (even powers only). A296939

Number of compositions of n in which the greatest part is odd. A103421

Sequence with a (1,2) Somos-4 Hankel transform. A178074

Deficient numbers n having a companion m > n such that σ(n)/n = σ(m)/m. A212608

Least m > 0 such that m·n³ + 1 is a cube. A266236

Triangle read by rows: T(n,k) is the number of n X n binary matrices with k=0..n² ones forming a polyomino, under action of dihedral group of the square D₄. A331462

a(n) = ∑_k=0..n-1 (-1)^k * binomial(n,k)² * (n-k-1)!. A352150

Numbers n such that n | 6ⁿ + 5ⁿ + 4ⁿ. A57235