Properties of the Number 43398

Forty-Three Thousand Three Hundred Ninety-Eight

Basics

Value: 43397 → 43398 → 43399

Parity: even

Prime: No

Previous Prime: 43397

Next Prime: 43399

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 2411

Divisors: 1, 2, 3, 6, 9, 18, 2411, 4822, 7233, 14466

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010100110000110

Octal: 124606

Duodecimal: 21146

Hexadecimal: a986

Square: 1883386404

Square Root: 208.32186635108664

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

A convolution triangle of numbers based on A001906 (even-indexed Fibonacci numbers). A125662

Triangle of coefficients of Chebyshev's S(n,x-3) polynomials (exponents of·in increasing order). A207815

Triangle read by rows: T(0,0)=1; T(n,k) is the coefficient of x^k in the polynomial (-1)ⁿ*p(n,x), where p(n,x) is the characteristic polynomial of the n X n tridiagonal matrix with 3's on the main diagonal and -1's on the super- and subdiagonal (n >= 1; 0 <= k <= n). A123965

Averages of twin prime pairs that are sums of 4 consecutive averages of twin prime pairs. A160918

Numerators of continued fraction convergents to sqrt(313). A41590

Total number of distinct Lyndon factors appearing in all words of length n over an alphabet of size 2. A290746

Triangle read by rows: T(n,k) is the number of ternary words (i.e., finite sequences of 0's, 1's and 2's) of length n having k occurrences of 01's (0 <= k <= floor(n/2)). A181371

Expansion of 1/(1 - 3·x + x²)³. A246178

a(n) = ∑_k=0..n C(n,k) * (2^k + 3^k)^k. A251671

Duplicate of A123965. A124025