Properties of the Number 19182

Nineteen Thousand One Hundred Eighty-Two

Basics

Value: 19181 → 19182 → 19183

Parity: even

Prime: No

Previous Prime: 19181

Next Prime: 19183

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 23 × 139

Divisors: 1, 2, 3, 6, 23, 46, 69, 138, 139, 278

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101011101110

Octal: 45356

Duodecimal: B126

Hexadecimal: 4aee

Square: 367949124

Square Root: 138.49909746998352

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

Product of a prime and the previous number. A36689

Largest possible z-value of an integer solution (x,y,z) to 4/n = 1/x + 1/y + 1/z satisfying 0 < x < y < z. The·and y components are in A075245 and A075246. A75247

Numbers representable in exactly two ways as (p-1)*p^e (where p is a prime and e >= 0) in ascending order. A114874

Multiplicative order of 2 modulo prime(n)² for n >= 2. A243905

Numbers m such that gcd(A001008(m), m) > 1, in increasing order. A256102

z-value of the lexicographically first solution (x,y,z) of 4/n = 1/x + 1/y + 1/z with 0 < x < y < z all integers, or 0 if there is no such solution. Corresponding·and y values are in A257839 and A257840. A257841

Sorted Galois numbers. A28689

Numbers m such that m^k does not divide the denominator of the m-th generalized harmonic number H(m,k) nor the denominator of the m-th alternating generalized harmonic number H'(m,k), for k = 4. A128674

Numbers that are both interprime and oblong. A263676

Numbers n such that 3ⁿ-2^n-1 is prime. A95906