Properties of the Number 3642

Three Thousand Six Hundred Forty-Two

Basics

Value: 3641 → 3642 → 3643

Parity: even

Prime: No

Previous Prime: 3637

Next Prime: 3643

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 607

Divisors: 1, 2, 3, 6, 607, 1214, 1821, 3642

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000111010

Octal: 7072

Duodecimal: 2136

Hexadecimal: e3a

Square: 13264164

Square Root: 60.34898507845845

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

Coordination sequence for "crs" 3D uniform tiling formed from tetrahedra and truncated tetrahedra. A299268

Number of connected bipartite graphs with n edges, no isolated vertices and a distinguished bipartite block, up to isomorphism. A56156

Numbers k such that for any positive integers (a, b), if a·b = k then a + b is prime. A80715

Numbers k such that k!!!!! + 1 is prime. A85148

T(n,k)=Number of nXk binary arrays without the pattern 0 0 1 vertically, antidiagonally or horizontally. A188851

Positive integers n such that n¹² + 1 is semiprime. A105142

Number of topologies on n labeled points satisfying the T₄ axiom. A6056

Array read by antidiagonals: A(n,k) is the number of T₀ n-regular set multipartitions (multisets of sets) on a k-set. A331126

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two. A205836

G.f.: ∑_n>=0 xⁿ * (1 + xⁿ)ⁿ / (1 + xⁿ⁺¹)ⁿ⁺¹. A323557