Properties of the Number -19004

Nineteen Thousand Four

Basics

Value: -19005 → -19004 → -19003

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 4751

Divisors: 1, 2, 4, 4751, 9502, 19004

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -100101000111100

Octal: -45074

Duodecimal: -ABB8

Hexadecimal: -4a3c

Square: 361152016

Square Root: 137.85499628232557

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 k such that σ(k+2) = σ(k). A7373

For 1<=x<=n, 1<=y<=n, write gcd(x,y) = u·x+v·y with u,v minimal; a(n) = n⁴*s, where s is the population variance of the values of u. A345687

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

∑_0<j<k<=n P(k)-P(j), where P(j)=A065091(j) is the j-th odd prime. A206803

a(n) = ∑_i=1..n (-1)ⁱ⁺¹ prime(i)², where prime(k) denotes the k-th prime: alternating sum of the squares of the first n primes. A240860

Anagrasum integers: integers N that exactly reproduce their set of digits when we form the set of sums of pairs of adjacent digits. A296521

Numbers that can be represented as p^r + q^s with 4 distinct odd primes p, q, r, s. A390179

Numbers k such that σ(k-2) + σ(k+2) = σ(2k). A67172

Molien series for symmetrized weight enumerators of self-dual codes over GF(4) + GF(4)u with u² = 0. A92549

a(n) = 54·n² - 26·n + 4 (n>=1). A304381