Properties of the Number 27889

Twenty-Seven Thousand Eight Hundred Eighty-Nine

Basics

Value: 27888 → 27889 → 27890

Parity: odd

Prime: No

Previous Prime: 27883

Next Prime: 27893

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 167 ²

Divisors: 1, 167, 27889

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110011110001

Octal: 66361

Duodecimal: 14181

Hexadecimal: 6cf1

Square: 777796321

Square Root: 167

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

Squares of primes. A1248

Numbers whose sum of divisors is prime. A23194

Sum of legs of primitive Pythagorean triangles having legs that add up to a square, sorted on hypotenuse. A89552

a(n) = (6·n + 5)². A16970

Squares of primes lacking the digit zero in their decimal expansion. A52043

Perfect squares which are neither the sum nor the difference of two primes. A106573

Numbers n such that ∑_d∣n τ(d) = ∏_d∣n τ(d). A280076

Position of first appearance of n in A380955 (sum of prime indices minus sum of distinct prime indices). A380956

Sorted positions of first appearances in A380955 (sum of prime indices minus sum of distinct prime indices). A380957

Squares with strictly increasing sum of digits. A68809