Properties of the Number 7485

Seven Thousand Four Hundred Eighty-Five

Basics

Value: 7484 → 7485 → 7486

Parity: odd

Prime: No

Previous Prime: 7481

Next Prime: 7487

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 499

Divisors: 1, 3, 5, 15, 499, 1497, 2495, 7485

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110100111101

Octal: 16475

Duodecimal: 43B9

Hexadecimal: 1d3d

Square: 56025225

Square Root: 86.51589449343976

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) is the number of conjugacy classes in the alternating group A_n. A702

a(n) = ∑_{1 <= i, j, k <= n} gcd(i,j,k). A344522

Number of partitions of n such that the number of different parts is odd. A90794

T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 2,4,1,0,1 for x=0,1,2,3,4. A197373

a(n) = ∑_i=0..n-1 2ⁱ*prime(n-i). A110299

Coefficients arising in combinatorial field theory. A94074

G.f. A(x) satisfies: A(x) = 1 + x·A(2·x/(1 - x)²) / (1 - x)². A392532

Number of strip poly-IH68-tiles (holes allowed) with n cells. A182646

Coefficients of the nonnegative powers of ρ(11) = 2·cos(π/11) when written in the power basis of the degree 5 number field Q(ρ(11)). Negative of the coefficients of the second power. A231184

Expansion of e.g.f. exp( x²/(2 * (1-x)²) ) / (1-x). A361596