Properties of the Number -19381

Nineteen Thousand Three Hundred Eighty-One

Basics

Value: -19382 → -19381 → -19380

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 19381

Divisors: 1, 19381

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -100101110110101

Octal: -45665

Duodecimal: -B271

Hexadecimal: -4bb5

Square: 375623161

Square Root: 139.21566003866087

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

Expansion of (1 - x + x⁴)/((1 - x + x⁴)² + 4·x⁵). A375291

Numbers n such that p(10n) is prime, where p(n) is the number of partitions of n. A114170

Prime(n)*...*a(n) is the least product of consecutive primes which is abundant. A7708

Primes which can be expressed as sum of distinct powers of 5. A77719

Number of labeled chains with n edges. A48174

Primes of the form x² + 5·y², where·and y=x+1 are consecutive natural numbers. A176608

Prime(n)*...*a(n) is the least product of consecutive primes which is non-deficient. A7686

Sums of 5 distinct powers of 5. A38477

Duplicate of A048174. A58350

Maximal number of 15432 patterns in a permutation of 1,2,...,n. A100355