Properties of the Number 8417

Eight Thousand Four Hundred Seventeen

Basics

Value: 8416 → 8417 → 8418

Parity: odd

Prime: No

Previous Prime: 8389

Next Prime: 8419

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 19 × 443

Divisors: 1, 19, 443, 8417

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10000011100001

Octal: 20341

Duodecimal: 4A55

Hexadecimal: 20e1

Square: 70845889

Square Root: 91.7442096265481

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

Irregular triangle read by rows: T(n,k) is the number of free polyominoes with n cells and width k, n >= 1, 1 <= k <= ceiling(n/2). A379623

Number of integer partitions of n with the maximum adjusted frequency depth for partitions of n. A325254

The number of biconnected squaregraphs that contain n squares. A194088

a(n) = 8·n² + 7·n + 1. A194268

The number of vertices on an octagon formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts. A333109

Indices of prime tetranacci numbers. A104534

Table read by antidiagonals: Place k equally spaced points on each side of a regular n-gon and join every pair of the n*(k+1) boundary points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of vertices in the resulting planar graph. A367322

a(n) = 10·n² + 7. A61722

a(n) = 4·n² - n - 1. A185950

Fibonacci sequence beginning 11, 7. A206419