Properties of the Number 22440

Twenty-Two Thousand Four Hundred Forty

Basics

Value: 22439 → 22440 → 22441

Parity: even

Prime: No

Previous Prime: 22433

Next Prime: 22441

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 5 × 11 × 17

Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 11, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101011110101000

Octal: 53650

Duodecimal: 10BA0

Hexadecimal: 57a8

Square: 503553600

Square Root: 149.79986648859204

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 k such that there is 1 prime between 100·k and 100·k + 99. A186393

Numbers n such that the multiplicative group modulo n is the direct product of 6 cyclic groups. A272596

T(n,k)=Number of nXk 0..6 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other. A201072

Number of distinct edges among all circles that can be constructed on vertices of an n-sided regular polygon, using only a compass. A359047

Row 7 of array in A288580. A92972

Nonnegative values·of solutions (x, y) to the Diophantine equation x²+(x+161)² = y². A206426

a(n) = ∑_{k=0..floor(3·n/8)} binomial(k,3·n-8·k). A392272

Numbers with prime factorization pqrst³. A189984

Common differences in triples of squares in arithmetic progression, that are not a multiples of other triples in (A198384, A198385, A198386). A198438

Primitive unitary abundant numbers (definition 1): unitary abundant numbers (A034683) all of whose proper unitary divisors are unitary deficient. A302573