Properties of the Number 1269

One Thousand Two Hundred Sixty-Nine

Basics

Value: 1268 → 1269 → 1270

Parity: odd

Prime: No

Previous Prime: 1259

Next Prime: 1277

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

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

a(0) = 0, a(1) = 1; a(n) = max { 4·a(k) + a(n-k) | 1 <= k <= n/2 }, for n > 1. A116520

Numbers that are the sum of 3 nonzero squares in exactly 8 ways. A25328

a(n) = n*(n+20). A120071

a(n) = 90·n - 81. A139280

a(1) = 1; a(n) is smallest number > a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime. A74336