Properties of the Number -223440

Two Hundred Twenty-Three Thousand Four Hundred Forty

Basics

Value: -223441 → -223440 → -223439

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ⁴ × 3 × 5 × 7 ² × 19

Divisors: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110110100011010000

Octal: -664320

Duodecimal: -A9380

Hexadecimal: -368d0

Square: 49925433600

Square Root: 472.6944044517557

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 partition product of Stirling₁ type [parameter k = 4] with biggest-part statistic (triangle read by rows). A157394

Triangle read by rows: T(n,k) is the number of labeled 2-connected planar graphs with n nodes and k edges, n >= 3, n <= k <= 3(n-2). A100960

a(n) = ∑_{k=1..prime(n)-1} floor(k³/prime(n)). A78837

a(n) = 24·n*p(n) = 24·n*A000041(n). A183009

Number of abstract simplicial 2-complexes on {1,2,3,...,n+3} which triangulate the 2-sphere: C(n+3,2)*(4n+1)!/(3n+3)!. A7816

Triangle read by rows: T(n,k) is the number of labeled connected planar graphs on n vertices and k edges. A288265

Triangle read by rows: T(n,k) is the number of labeled planar graphs on n vertices and k edges. A288266

Number of permutations in S_n with major index equal to inversion number. A207018