Properties of the Number 9722

Nine Thousand Seven Hundred Twenty-Two

Basics

Value: 9721 → 9722 → 9723

Parity: even

Prime: No

Previous Prime: 9721

Next Prime: 9733

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 4861

Divisors: 1, 2, 4861, 9722

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10010111111010

Octal: 22772

Duodecimal: 5762

Hexadecimal: 25fa

Square: 94517284

Square Root: 98.60020283954795

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

Coordination sequence for 3D uniform tiling formed by stacking parallel layers of the 3⁴.6 2D tiling (cf. A250120). A299254

Numbers n such that binomial(2n, n) - 1 is prime. A66726

Numbers that occur only once in A155043; positions of zeros in A262505, ones in A262507. A262508

a(n) = -6 + 2ⁿ⁺¹*(3 - 2·n + n²). A36800

a(n) = 25·n² - 14·n + 2. A154357

T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 2,1,3,4,0 for x=0,1,2,3,4. A196957

Numbers k such that 5^k - k is prime. A58046

Triangle read by rows: T(n,k) is the number of ordered trees with n edges and jump-length equal to k (n >= 0, 0 <= k <= n-2). A127529

Numbers whose square is a permutational number A134640. A134742

First result not divisible by 4 when iterating k -> k+τ(k) from 2(2n-1)². A165495