Properties of the Number 22738

Twenty-Two Thousand Seven Hundred Thirty-Eight

Basics

Value: 22737 → 22738 → 22739

Parity: even

Prime: No

Previous Prime: 22727

Next Prime: 22739

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 11369

Divisors: 1, 2, 11369, 22738

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101100011010010

Octal: 54322

Duodecimal: 111AA

Hexadecimal: 58d2

Square: 517016644

Square Root: 150.7912464302885

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

Number of up/down (initially ascending) compositions of n. A25048

Expansion of (f(-x⁵) / f(-x))² in powers of·where f() is a Ramanujan θ function. A263002

T(n,k)=Number of (n+1)X(n+1) 0..k arrays with each 2X2 subblock determinant nonzero and the array of 2X2 subblock determinants symmetric under horizontal and vertical reflection. A187699

T(n,k)=Number of nXk 0..5 arrays with every element value z a city block distance of exactly z from another element value z. A208960

T(n,k)=Number of nXk 0..6 arrays with every element value z a city block distance of exactly z from another element value z. A209054

T(n,k)=Number of nXk 0..7 arrays with every element value z a city block distance of exactly z from another element value z. A209218

a(0) = 1, a(n) = 29·n² + 2 for n>0. A10019

Numbers k such that the continued fraction for sqrt(k) has period 49. A20388

Nonnegative integers n such that n^j doesn't contain the digit j (1<=j<=7) and n is not a multiple of a smaller member of the sequence. A167668

Number of (n+1)X(n+1) 0..3 arrays with each 2X2 subblock determinant nonzero and the array of 2X2 subblock determinants symmetric under horizontal and vertical reflection. A187698