Properties of the Number 30458

Thirty Thousand Four Hundred Fifty-Eight

Basics

Value: 30457 → 30458 → 30459

Parity: even

Prime: No

Previous Prime: 30449

Next Prime: 30467

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 97 × 157

Divisors: 1, 2, 97, 157, 194, 314, 15229, 30458

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111011011111010

Octal: 73372

Duodecimal: 15762

Hexadecimal: 76fa

Square: 927689764

Square Root: 174.52220489095365

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

Position of sqrt(n) in the mapping N2QuQR2 given in A065937. A65939

a(n) = ∑_k=0..n 2^k * 3^n-k * binomial(4·n+1,k) * binomial(4·n-k,n-k). A385671

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 401", based on the 5-celled von Neumann neighborhood. A271805

Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,1 3,2 4,1 polyhexes in any orientation on a planar nXnXn triangular grid. A155301

Primes formed by concatenating n with n+1. A30458

Number of (n+2) X 7 0..2 arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock. A186564

G.f. satisfies A(x) = A( x³ + 2·x*A(x)³ ) / A( x² + x·A(x)² ). A392207