Properties of the Number 4986

Four Thousand Nine Hundred Eighty-Six

Basics

Value: 4985 → 4986 → 4987

Parity: even

Prime: No

Previous Prime: 4973

Next Prime: 4987

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 277

Divisors: 1, 2, 3, 6, 9, 18, 277, 554, 831, 1662

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1001101111010

Octal: 11572

Duodecimal: 2A76

Hexadecimal: 137a

Square: 24860196

Square Root: 70.61161377563892

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

Numbers m such that there are precisely 16 groups of order m. A295161

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally. A232908

T(n,k)=Number of length n+5 0..k arrays with some three disjoint pairs in each consecutive six terms having the same sum. A248489

a(n) = 3·2*1 + 6·5*4 + 9·8*7 + 12·11·10 + ... + (up to the n-th term). A319867

T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every consecutive three elements in every row, column, diagonal and antidiagonal having exactly two distinct values, and new values 0 upwards introduced in row major order. A252861

Integers that need 6 iterations of the map x->A352172(x) to reach 1. A352264

Starting index of a string of exactly 3 consecutive equal digits in decimal expansion of π. A49519

Expansion of q * ψ(q²) * ψ(-q⁹) / (φ(-q³) * ψ(-q³)) in powers of q where φ(), ψ() are Ramanujan θ functions. A139214

Expansion of f(x³, x³) * f(x, x⁵) / f(x, x)² in powers of·where f(,) is Ramanujan's general θ function. A261325

Expansion of b(q²) * c(q⁶) / (b(q) * c(q³)) in powers of q where b(), c() are cubic AGM θ functions. A123629