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Properties of the Number 1992

One Thousand Nine Hundred Ninety-Two

Basics

Value: 1991 → 1992 → 1993

Parity: even

Prime: No

Previous Prime: 1987

Next Prime: 1993

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 3 × 3 × 83

Divisors: 1, 2, 3, 4, 6, 8, 12, 24, 83, 166

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11111001000

Octal: 3710

Duodecimal: 11A0

Hexadecimal: 7c8

Square: 3968064

Square Root: 44.63182720884279

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

Number of P-equivalence classes of switching functions of n or fewer variables, divided by 2. A612
Partial sums of A299283. A299284
Number of integer partitions of n with the same length as alternating sum. A357189
Number of cells of square lattice of edge 1/n inside quadrant of unit circle centered at 0. A1182
Coordination sequence for 4-dimensional cubic lattice (points on surface of 4-dimensional cross-polytope). A8412
Consider the base-5 Kaprekar map n->K(n) defined in A165032. Sequence gives numbers belonging to cycles, including fixed points. A165037
Numbers where 9 outnumbers any other digit. A292449
Number of integer partitions of 2n - 1 with the same length as alternating sum. A357488
Square array read by descending antidiagonals: A(1,k) = A188163(k), and for n > 1, A(n,k) = A087686(1+A(n-1,k)). A265903
T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7. A252305

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