Properties of the Number 27888

Twenty-Seven Thousand Eight Hundred Eighty-Eight

Basics

Value: 27887 → 27888 → 27889

Parity: even

Prime: No

Previous Prime: 27883

Next Prime: 27893

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 2 ⁴ × 3 × 7 × 83

Divisors: 1, 2, 3, 4, 6, 7, 8, 12, 14, 16

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110011110000

Octal: 66360

Duodecimal: 14180

Hexadecimal: 6cf0

Square: 777740544

Square Root: 166.9970059611848

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

a(n) = (prime(n)-1)*(prime(n)+1). A84920

Let p = A002145(n) be the n-th prime == 3 (mod 4); a(n) is the multiplicative order of 2+-i modulo p in Gaussian integers. A385165

A triangle related to the a(n) formulas of the rows of the ED4 array A167584. A167591

Numbers that have exactly seven prime factors counted with multiplicity (A046308) whose digit reversal is different and also has 7 prime factors (with multiplicity). A109027

Call two meanders from A005316 equivalent if they differ by a reflection in the Y axis (if n even) or by reflections in the X or Y axes (if n odd). Sequence gives number of inequivalent meanders with n crossings. A77055

Eight times hexagonal numbers: a(n) = 8·n*(2·n-1). A152750

Numbers in cycles of RATS sequences. A161596

The third left hand column of triangle A167591. A167593

Numbers k such that k/(3·k - σ(k)) is a positive integer. A364977

Numbers whose square starts with 4 identical digits. A132391