Properties of the Number -1406

Four Hundred Six

Basics

Value: -1407 → -1406 → -1405

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 × 19 × 37

Divisors: 1, 2, 19, 37, 38, 74, 703, 1406

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10101111110

Octal: -2576

Duodecimal: -992

Hexadecimal: -57e

Square: 1976836

Square Root: 37.49666651850535

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

Years in which a transit of Venus (as seen from Earth) took place or is expected to occur, according to the catalog by Fred Espenak. A171467

Expansion of ∏_k>0 theta₃(q^2·k-1)/theta₃(q^2·k), where theta₃() is the Jacobi θ function. A321026

Triangle read by rows: Coefficients of the polynomials S1(n, x) * EZ(n, x), where S1 denote the Stirling1 polynomials and EZ the Eulerian zig-zag polynomials A205497. A373429

Oblong (or promic, pronic, or heteromecic) numbers: a(n) = n*(n+1). A2378

a(n) = 2·n*(2·n-1). A2939

a(n) = n*σ(n). A64987

Number of integer partitions of n that are empty, (1), or have at least two parts and these parts are pairwise coprime. A327516

Expansion of g.f.: (1+x)/(1-37·x). A170757

a(n) = 2*(n² - n + 1). A51890

Semi-meanders: number of ways a semi-infinite directed curve can cross a straight line n times. A682