Properties of the Number 1263

One Thousand Two Hundred Sixty-Three

Basics

Value: 1262 → 1263 → 1264

Parity: odd

Prime: No

Previous Prime: 1259

Next Prime: 1277

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 421

Divisors: 1, 3, 421, 1263

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011101111

Octal: 2357

Duodecimal: 893

Hexadecimal: 4ef

Square: 1595169

Square Root: 35.53871128783372

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

Expansion of 1/((1-x)²*∏_k>=1 (1-x^k)). A14153

Number of partitions of n for which the number of even parts is equal to the positive alternating sum of the parts. A277579

Numbers m such that the Bernoulli number B_2·m has denominator 42. A51227

Numbers k such that φ(k) = φ(σ(k)). A6872

A000120-perfect numbers. A175522

Number of integer partitions of n containing their multiset of multiplicities (as a submultiset). A325702

a(n) is the number of distinct resistances that can be produced from a circuit with exactly n unit resistors. A337517

Number T(n,k) of permutations p of [n] such that the up-down signature of 0,p has nonnegative partial sums with a maximal value of k; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A258829

a(n) = n² + n + 3. A27688

Number of strict integer partitions of n with a unique 1 or prime part. A379315