Properties of the Number -1269

Two Hundred Sixty-Nine

Basics

Value: -1270 → -1269 → -1268

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 47

Divisors: 1, 3, 9, 27, 47, 141, 423, 1269

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011110101

Octal: -2365

Duodecimal: -899

Hexadecimal: -4f5

Square: 1610361

Square Root: 35.62302626111375

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

Sequence is {a(3,n)}, where a(m,n) is defined at sequence A110665. A110668

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

Numerators of sum of rows of the inverse of the triangle of Euler polynomial coefficients P(0,x)=1, 2P(n,x)=(1+x)*[(1+x)^n-1+x^n-1]. A230011

a(n) = [xⁿ] 2/(3·sqrt(4·x² + 1) + 6·x - 1). Alternating row sums of A375025. A375026

A triangle sequence from matrix polynomials of a three symbol type {0, 1, 2}: c(i,k)= Floor[Mod[i/2^k, 2]]; M(d)=Table[If[Sum[c(n, k)*c(m, k), {k, 0, d - 1}] == 0, 1, If[Sum[c(n, k)*c(m, k), {k, 0, d - 1}] == 1, 2, 0]], {n, 0, d - 1}, {m, 0, d - 1}]. A158418

Numbers that are the sum of 4 positive 5th powers. A3349

Multiples of 9 containing a 9 in their decimal representation. A121029

Number of superdiagonal bargraphs with area n. A219282

a(n) = n*(n + 7)/2. A55999

Coordination sequence for (2,5,6) tiling of hyperbolic plane. A265065