Properties of the Number 27556

Twenty-Seven Thousand Five Hundred Fifty-Six

Basics

Value: 27555 → 27556 → 27557

Parity: even

Prime: No

Previous Prime: 27551

Next Prime: 27581

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 83 ²

Divisors: 1, 2, 4, 83, 166, 332, 6889, 13778, 27556

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110101110100100

Octal: 65644

Duodecimal: 13B44

Hexadecimal: 6ba4

Square: 759333136

Square Root: 166

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 whose arithmetic mean of digits is an integer (i.e., the sum of digits is a multiple of the number of digits). A69711

a(n) = (6·n + 4)². A16958

a(n) = (11·n+1)². A17402

a(n) = (7·n + 5)². A17042

Numbers k such that φ(k) + σ(k) is a prime. A38344

Triangle read by rows: T(n,k) is the number of nonseparable tree-rooted planar maps with n edges and k faces, n >= 0, k = 1..n+1. A342984

a(n) = (prime(n) - 1)². A5722

Square numbers not of form m + sum of digits of m. A171671

Squares ending in digit 6. A273373

Numbers for which A003961(n) <= A064989(σ(A003961(n))). A326182