Properties of the Number 7530

Seven Thousand Five Hundred Thirty

Basics

Value: 7529 → 7530 → 7531

Parity: even

Prime: No

Previous Prime: 7529

Next Prime: 7537

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 × 251

Divisors: 1, 2, 3, 5, 6, 10, 15, 30, 251, 502

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1110101101010

Octal: 16552

Duodecimal: 4436

Hexadecimal: 1d6a

Square: 56700900

Square Root: 86.77557259966655

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 f(-x⁴, -x¹⁶) / ψ(-x) in powers of·where ψ() is a Ramanujan θ function and f(, ) is Ramanujan's general θ function. A122130

G.f.: ∏_n>=1 (1 + xⁿ + xⁿ⁺¹). A160571

Smallest initial values leading to fixed points listed in A077092. A77093

Numbers k such that iterating φ(σ(k)-φ(k)) starting from k leads to the fixed point 8064. A77096

Expansion of exp( ∑_n>=1 -σ(8·n)*xⁿ/n ) in powers of x. A283168

Occurrences of most frequently occurring number in 1-to-n 5-dimensional multiplication table. A57344

Expansion of x⁴*(2+x)/((1+x)*(1-x)⁵). A82289

Numbers k such that both k and the k-th prime have nonincreasing digits. A116067

Number of ON states after n generations of cellular automaton based on triangles, with diamonds. A253770

Self-convolution of A008485. A327215