Properties of the Number 22154

Twenty-Two Thousand One Hundred Fifty-Four

Basics

Value: 22153 → 22154 → 22155

Parity: even

Prime: No

Previous Prime: 22153

Next Prime: 22157

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 11 × 19 × 53

Divisors: 1, 2, 11, 19, 22, 38, 53, 106, 209, 418

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011010001010

Octal: 53212

Duodecimal: 109A2

Hexadecimal: 568a

Square: 490799716

Square Root: 148.84219831754703

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) is the concatenation of n and 7n. A9441

Numbers k such that k and k+1 each have at least 4 distinct prime factors. A321504

Numbers k such that k and k+1 are the product of exactly four distinct primes. A318896

Absolute row sums of triangle A104967. A104968

Partitions with parts repeated at most twice and repetition only allowed if first part has an odd index (first index = 1). A227134

Numbers k such that 10^k - σ(k²) is prime. A193881

Number of Motzkin paths of length n with all ascents ending at even heights. A299270

Numbers k such that k², (k+1)² and (k+2)² are all abundant numbers. A383391

Numbers n such that φ(n) + φ(n+1) = σ(n)/2. A76647

Number of nondecreasing -n..n vectors of length 3 whose dot product with some other -n..n vector equals 3. A226342