Properties of the Number 7124

Seven Thousand One Hundred Twenty-Four

Basics

Value: 7123 → 7124 → 7125

Parity: even

Prime: No

Previous Prime: 7121

Next Prime: 7127

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 13 × 137

Divisors: 1, 2, 4, 13, 26, 52, 137, 274, 548, 1781

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101111010100

Octal: 15724

Duodecimal: 4158

Hexadecimal: 1bd4

Square: 50751376

Square Root: 84.40379138403677

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

Number of reduced words of length n in the Weyl group D₁₉. A162347

Monotonic ordering of set S generated by these rules: if·and y are in S then x² + y² is in S, and 1 is in S. A192476

Numbers n such that Bernoulli number B_n has denominator 1590. A272140

Number of infinite-dimensional partitions of n up to conjugacy. A119268

Weighted count of partitions with distinct parts. A5895

Least nontrivial multiple of the n-th prime beginning with 7. A78291

Trajectory of n under the Reverse and Add! operation carried out in base 3 (presumably) does not reach a palindrome and (presumably) does not join the trajectory of any term m < n. A77405

a(n) = PrimePi(n³) - PrimePi(n)³, where PrimePi = A000720. A291538

Smallest even fundamental discriminant k such that h(-k) = 2n, where h(D) is the class number of the quadratic field with discriminant D; or 0 if no such k exists. A344072

G.f.: A(x) = exp( ∑_n>=1 σ(n)*xⁿ/(1+xⁿ) /n ). A158441