Properties of the Number 9425

Nine Thousand Four Hundred Twenty-Five

Basics

Value: 9424 → 9425 → 9426

Parity: odd

Prime: No

Previous Prime: 9421

Next Prime: 9431

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 ² × 13 × 29

Divisors: 1, 5, 13, 25, 29, 65, 145, 325, 377, 725

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010011010001

Octal: 22321

Duodecimal: 5555

Hexadecimal: 24d1

Square: 88830625

Square Root: 97.082439194738

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

Numbers m that are the hypotenuse of exactly 22 distinct integer-sided right triangles, i.e., m² can be written as a sum of two squares in 22 ways. A97103

a(n) = n*(2·n+5)*(n-1)/6. A51925

Numerators of squared radii of circumcircles of non-degenerate triangles with integer vertex coordinates. A192493

Rectangular array of coefficients in successive iterations of x·exp(x), as read by antidiagonals. A174480

Number of prime powers (p², p³, ...) <= 2ⁿ. A36386

Numbers n such that sopf(σ(n)) = σ(sopf(n)), where sopf(x) = sum of the distinct prime factors of x. A76532

G.f. satisfies: A(x) = 1 + x/A(-x)². A213252

a(n) = r·a(ceiling(n/2))+s·a(floor(n/2)) with a(1)=1 and (r,s)=(3,2). A268526

RMS values of the RMS numbers: a(n) is the root mean square of the divisors of A140480(n). A141812

T(n,k) = Unmatched value maps: number of nXk binary arrays indicating the locations of corresponding elements not equal to any horizontal, vertical or antidiagonal neighbor in a random 0..1 nXk array. A219741