Properties of the Number 49818

Forty-Nine Thousand Eight Hundred Eighteen

Basics

Value: 49817 → 49818 → 49819

Parity: even

Prime: No

Previous Prime: 49811

Next Prime: 49823

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 19 ² × 23

Divisors: 1, 2, 3, 6, 19, 23, 38, 46, 57, 69

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100001010011010

Octal: 141232

Duodecimal: 249B6

Hexadecimal: c29a

Square: 2481833124

Square Root: 223.19946236494388

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

Inverse Euler transform of the Moebius function A008683. A320781

Number of n-digit primes of the form (k-1)² + k². A218207

a(n) = 3ⁿ + 7ⁿ + 8ⁿ. A74558

Number of 0..n arrays of length 5 with each element differing from at least one neighbor by 1 or less. A221597

Expansion of g.f. A(x) satisfying [x^n-1] (1 + (n+1)*x·A(x))ⁿ / A(x)ⁿ = n*(n+2)^n-2 for n > 1. A365574

a(n) = ∑_{k=1..n, m=1..n} T(m,k), array T as in A049816. A49818