Properties of the Number -22827

Twenty-Two Thousand Eight Hundred Twenty-Seven

Basics

Value: -22828 → -22827 → -22826

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 1087

Divisors: 1, 3, 7, 21, 1087, 3261, 7609, 22827

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101100100101011

Octal: -54453

Duodecimal: -11263

Hexadecimal: -592b

Square: 521071929

Square Root: 151.08606818631557

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

Signed Stirling numbers of the second kind. A80417

Triangle of Stirling numbers of the second kind, S2(n,k), n >= 1, 1 <= k <= n. A8277

Triangle of Stirling numbers of 2nd kind, S(n,k), n >= 0, 0 <= k <= n. A48993

Reflected triangle of Stirling numbers of 2nd kind, S(n,n-k+1), n >= 1, 1 <= k <= n. A8278

Number T(n,k) of set partitions of [n] where each subset is again partitioned into k nonempty subsets; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A324162

Stirling numbers of the second kind S(n+4, n). A1298

Stirling numbers of the second kind, S(n,6). A770

O.g.f.: ∑_n>=1 (n²)^n-1 * exp(-n²*x) * xⁿ / n!. A217899

Triangle read by rows where T(n,k) is the number of separable type set partitions of {1..n} into k blocks. A386635

Triangle read by rows: T(n,k) is the number of primitive (aperiodic) word structures of length n using exactly k different symbols. A137651