Properties of the Number 1922

One Thousand Nine Hundred Twenty-Two

Basics

Value: 1921 → 1922 → 1923

Parity: even

Prime: No

Previous Prime: 1913

Next Prime: 1931

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 31 ²

Divisors: 1, 2, 31, 62, 961, 1922

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11110000010

Octal: 3602

Duodecimal: 1142

Hexadecimal: 782

Square: 3694084

Square Root: 43.840620433565945

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(n) = 2·n². A1105

Coordination sequence for 3D uniform tiling formed by stacking parallel layers of the 3⁴.6 2D tiling (cf. A250120). A299254

Numbers which are the sum of 3 nonzero 4th powers. A3337

Number of partitions of n having no more odd than even parts. A171966

a(1) = 1; thereafter a(n+1) = a(n) + product of nonzero digits of a(n). A63108

a(n) = 2·prime(n)². A79704

Triangle T by rows: second differences of Motzkin triangle (A026300), (i >= -1, -1<=j<=i). A26120

Multiply n by its largest prime factor: a(n) = A006530(n) * n. A253560

a(n) = A005940(1+(1+(3·A156552(n)))) = (1/2) * A005940(1+(3·A156552(2·n))). A329603

Numbers m with the property that the symmetric representation of σ(m) has three parts of width one. A247687