Properties of the Number 3280

Three Thousand Two Hundred Eighty

Basics

Value: 3279 → 3280 → 3281

Parity: even

Prime: No

Previous Prime: 3271

Next Prime: 3299

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ⁴ × 5 × 41

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 40, 41

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 110011010000

Octal: 6320

Duodecimal: 1A94

Hexadecimal: cd0

Square: 10758400

Square Root: 57.271284253105414

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) = (3ⁿ - 1)/2. A3462

4 times triangular numbers: a(n) = 2·n*(n+1). A46092

Coordination sequence for 3D uniform tiling formed by stacking parallel layers of the 3.6.3.6 2D tiling (cf. A008579). A299256

Sums of distinct powers of 5. A33042

Triangle of B-analogs of Stirling numbers of the second kind. A39755

Array read by antidiagonals: T(n,k) is the number of sublattices of index n in generic k-dimensional lattice (n >= 1, k >= 1). A160870

Triangle of Gaussian binomial coefficients [ n,k ] for q = 3. A22167

Triangle T(n,k) (n >= 2, k = 3..n+floor(n/2)) giving number of bicoverings of an n-set with k blocks. A59443

Triangular array: the fission of the polynomial sequence ((x+1)ⁿ: n >= 0) by the polynomial sequence ((x+2)ⁿ: n >= 0). (Fission is defined at Comments.) A193842

Number of pairwise coprime compositions of n, where a singleton is not considered coprime unless it is (1). A337462