Properties of the Number -1717

Seven Hundred Seventeen

Basics

Value: -1718 → -1717 → -1716

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 17 × 101

Divisors: 1, 17, 101, 1717

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -11010110101

Octal: -3265

Duodecimal: -BB1

Hexadecimal: -6b5

Square: 2948089

Square Root: 41.43669871020132

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

Expansion of ψ(x³) / ψ(x) in powers of·where ψ() is a Ramanujan θ function. A101195

Pentagonal numbers: a(n) = n*(3·n-1)/2. A326

Doublets: base-10 representation is the juxtaposition of two identical strings. A20338

Coordination sequence for "flu" 3D uniform tiling formed from tetrahedra, rhombicuboctahedra, and cubes. A299272

Multiples of 17 containing a 17 in their decimal representation. A121037

Pentagonal numbers with even index. A49452

Numbers that are the sum of 9 positive 6th powers. A3365

Array read by antidiagonals: T(m,n) = number of m-ary words of length n with cyclically adjacent elements differing by 2 or less. A285280

Numbers k such that 2^k + 9 is prime. A57196

|First digit - second digit + third digit - fourth digit ...| = 12. A60980