Properties of the Number 22980

Twenty-Two Thousand Nine Hundred Eighty

Basics

Value: 22979 → 22980 → 22981

Parity: even

Prime: No

Previous Prime: 22973

Next Prime: 22993

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 5 × 383

Divisors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101100111000100

Octal: 54704

Duodecimal: 11370

Hexadecimal: 59c4

Square: 528080400

Square Root: 151.59155649309758

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

Triangle read by rows: Take a hexagon with all diagonals drawn, as in A331931. Then T(n,k) = number of k-sided polygons in that figure for k = 3, 4, ..., n+4. A331932

McKay-Thompson series of class 13A for the Monster group with a(0) = -2. A34318

McKay-Thompson series of class 13A for the Monster group with a(0) = 0. A34319

a(n) = 1000·n - 20. A157515

G.f. satisfies: A(x) = 1 + x·A(x)*A(-x) + x²*(A(x)² + A(-x)²). A233895

Expansion of 1/∑_k>=0 (k+1)^k+1*x^k. A296617

E.g.f. satisfies A(x) = exp( 4 * (exp(x·A(x)^3/4) - 1) ). A375872

Triangle read by rows in which each row is the inverse binomial transform of a diagonal of A089246. A89302

"BHK" (reversible, identity, unlabeled) transform of 1,2,3,4,... A32099

Triangular array read by rows. T(n,k) is the number of n-permutations with k cycles of length one or k cycles of length two, n>=0,0<=k<=n. A237928