Properties of the Number 7431

Seven Thousand Four Hundred Thirty-One

Basics

Value: 7430 → 7431 → 7432

Parity: odd

Prime: No

Previous Prime: 7417

Next Prime: 7433

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 2477

Divisors: 1, 3, 2477, 7431

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110100000111

Octal: 16407

Duodecimal: 4373

Hexadecimal: 1d07

Square: 55219761

Square Root: 86.20324819866129

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 "flu" 3D uniform tiling formed from tetrahedra, rhombicuboctahedra, and cubes. A299272

Record values in A194591. A194600

Record values in A194606. A194607

Record values in A194636. A194637

Triangle, read by rows, T(n,k) = t(n-k, k) where t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1) and f(n) = 2·n + 3. A257611

G.f. satisfies A(x) = (1 + x·A(x)) * (1 - x·A(x)²). A364374

Numbers n such that 243·2ⁿ-1 is prime. A50880

a(n) = (n-1)*(n-2)³ - A003878(n-3), with a(1) = a(2) = 0 and a(3) = 2. A75681

Numbers k such that [r[s·k]] - [s[r·k]] = -2, where r = sqrt(2), s=sqrt(3), and [ ] = floor. A259584

O.g.f. A(x) satisfies: [xⁿ] (1+x)^n³ / exp( n²*A(x) ) = 0 for n >= 1. A319832