Properties of the Number 22129

Twenty-Two Thousand One Hundred Twenty-Nine

Basics

Value: 22128 → 22129 → 22130

Parity: odd

Prime: Yes

Previous Prime: 22123

Next Prime: 22133

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 22129

Divisors: 1, 22129

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011001110001

Octal: 53161

Duodecimal: 10981

Hexadecimal: 5671

Square: 489692641

Square Root: 148.75819305167698

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

Numbers n such that n!10 + 2 is prime. A204657

Let F(g,p) be the frequency of g up to prime nextprime(p+1). Primes p such that F(2,p) = F(4,p) and g = 2 or 4. A274122

Prime numbers congruent to 49 or 121 modulo 240 representable by x² + 150·y². A325089

a(0) = a(1) = a(2) = 1; a(n) = ∑_k=1..n-3 a(k) * a(n-k-3). A346047

Primes with 19 as smallest positive primitive root. A61331

Primes arising in A073946. A113943

Primes formed by concatenation (exponent then prime) of prime factorizations of the positive integers. A226095

Primes p = prime(n): such that p.n and n.p both are prime, where (.) indicates concatenation. A243886

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 19. A31607

Primes p such that for the cyclic group Zp of a prime order p there exist a perfect 4-shift code {+-1,+-a,+-a²,+-b} in Zp. A162542