Properties of the Number 8622

Eight Thousand Six Hundred Twenty-Two

Basics

Value: 8621 → 8622 → 8623

Parity: even

Prime: No

Previous Prime: 8609

Next Prime: 8623

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 479

Divisors: 1, 2, 3, 6, 9, 18, 479, 958, 1437, 2874

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10000110101110

Octal: 20656

Duodecimal: 4BA6

Hexadecimal: 21ae

Square: 74338884

Square Root: 92.85472524325297

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

Expansion of 1/(1 - x² - x⁷ - x¹² + x¹⁴) (a Salem polynomial). A143619

Numbers k such that 3^k + 10 is prime. A217137

Number of perfect powers (A001597) < 2ⁿ. A188951

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock differing from the number in all its horizontal and vertical neighbors. A205072

Coefficient of x² in the polynomial (x-p(n))*(x-p(n+1))*(x-p(n+2))*(x-p(n+3)), where p(k) is the k-th prime. A127348

Positions of zeros in A165582. A165583

Numbers k such that S(k+2) = d(k)+2, where S(k) is the Kempner function (A002034) and d(k) is the number of divisors of k (A000005). A73535

a(n) = Min{x : A073124(x) = 2n}. A96480

Numbers k such that the sum of the first k primes is prime and the sum of the squares of the first k primes is also prime. A124225

a(n) = 3^n-1 + C(2·n, n)/2. A191993