Properties of the Number 43319

Forty-Three Thousand Three Hundred Nineteen

Basics

Value: 43318 → 43319 → 43320

Parity: odd

Prime: Yes

Previous Prime: 43313

Next Prime: 43321

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 43319

Divisors: 1, 43319

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010100100110111

Octal: 124467

Duodecimal: 2109B

Hexadecimal: a937

Square: 1876535761

Square Root: 208.13216954618045

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(n) = 30·n² - 1. A158560

Primes p such that continued fraction of (1 + sqrt(p))/2 has period 16 : primes in A146339. A146361

Primes p of the form 4·k+3 such that p+2 is prime and p-1 is nonsquarefree. A175606

Number of 3 X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4. A239987

Number of nX5 0..1 arrays with every element equal to 0, 1, 3, 4 or 7 king-move adjacent elements, with upper left element zero. A298498

Primes p such that p and p+2 are twin primes and also the strings 987654321p and 987654321p+2 are twin primes. A103818

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250853

Irregular triangle read by rows, where row n lists in ascending order all numbers k whose arithmetic derivative k' is equal to the n-th partial sum of primorials, A143293(n). Rows of length zero are simply omitted, i.e., when A369239(n) = 0. A369240

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 3, 4 or 7 king-move adjacent elements, with upper left element zero. A298501

a(n)=A033013(n)/16. A43319