Properties of the Number 22107

Twenty-Two Thousand One Hundred Seven

Basics

Value: 22106 → 22107 → 22108

Parity: odd

Prime: No

Previous Prime: 22093

Next Prime: 22109

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 7369

Divisors: 1, 3, 7369, 22107

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011001011011

Octal: 53133

Duodecimal: 10963

Hexadecimal: 565b

Square: 488719449

Square Root: 148.68422915696203

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) = ∑_{k=0..floor(2·n/7)} binomial(2·n-4·k,3·k). A392403

a(n+1) = a(n)-th composite number, with a(1) = 11. A59407

Numbers k such that k!! - 2^k is prime. A124249

Triangle read by rows: row n gives y transposed, where y is the solution to the matrix equation M·y=b, where the matrix M and vector b are defined by M(i,j) = ((2ⁱ⁺¹ + 1)^j-1 + 1)/2 and b(i) = ((2ⁱ⁺¹+1)ⁿ + 1)/2 for 1 <= i,j <= n. A292625

a(n+1) = a(n) converted to base 10 from base 9 (written in base 10). A23392

Number of n-digit terms in A048398. A182781

Odd numbers k such that φ(k) and cototient(k) have the same prime signature. A280927

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 211", based on the 5-celled von Neumann neighborhood. A270899

a(n) = ∑_{k=0..floor(n/7)} binomial(n-4·k,3·k). A370722

Partial sums of A108754. A307673