Properties of the Number -19927

Nineteen Thousand Nine Hundred Twenty-Seven

Basics

Value: -19928 → -19927 → -19926

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 19927

Divisors: 1, 19927

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100110111010111

Octal: -46727

Duodecimal: -B647

Hexadecimal: -4dd7

Square: 397085329

Square Root: 141.16302632063397

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

Cuban primes: primes which are the difference of two consecutive cubes. A2407

Largest prime factor of 3ⁿ + 1. A74476

a(n) = ((3^n-1 + 1)³ - 1)/3ⁿ. A198410

Largest prime factor of 9ⁿ - 1. A274909

T(n,k)=Number of length n+5 0..k arrays with every six consecutive terms having five times some element equal to the sum of the remaining five. A249497

Number of partitions of 3-smooth numbers into parts not greater than 3. A117220

a(n) = 12·n² + 18·n + 7. A154105

Primes of the form (1 + x)^y + (-x)^y where y is a divisor of x. A285887

Largest prime number p such that xⁿ + yⁿ mod p does not take all values on Z/pZ. A355920

a(n) = sum of terms in n-th row of A078448. A78449