Properties of the Number 22921

Twenty-Two Thousand Nine Hundred Twenty-One

Basics

Value: 22920 → 22921 → 22922

Parity: odd

Prime: Yes

Previous Prime: 22907

Next Prime: 22937

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 22921

Divisors: 1, 22921

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101100110001001

Octal: 54611

Duodecimal: 11321

Hexadecimal: 5989

Square: 525372241

Square Root: 151.3968295572929

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

Primes p such that continued fraction of (1 + sqrt(p))/2 has period 15: primes in A146338. A146360

Least prime in A031934 (lesser of 16-twins) whose distance to the next 16-twin is 6·n. A52357

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with each row and column not divisible by 3, read as a binary number with top and left being the most significant bits. A263060

Primes base 10 that remain primes in six bases b, 2<=b<=10, expansions interpreted as decimal numbers. A52028

Primes p of Erdos-Selfridge class 5+ with largest prime factor of p+1 not of class 4+. A129473

Primes whose binary and ternary representations are also prime when read in decimal. A236537

Hyperartiads. A270798

Prime numbers p such that π(p) + 2·p is a square. A104783

Denominators of continued fraction convergents to (sqrt(37)-4)/3. A82975

a(n) = n⁴ - 3·n³ + 6·n² - 5·n + 2 (n >= 1). A304160