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Properties of the Number 12888

Twelve Thousand Eight Hundred Eighty-Eight

Basics

Value: 12887 → 12888 → 12889

Parity: even

Prime: No

Previous Prime: 12853

Next Prime: 12889

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 3 × 3 2 × 179

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001001011000

Octal: 31130

Duodecimal: 7560

Hexadecimal: 3258

Square: 166100544

Square Root: 113.525327570547

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

Number of ways to cover (without overlapping) a ring lattice (necklace) of n sites with molecules that are 9 sites wide. A58364
Generalized tangent numbers dn,2. A176
Lower triangular array called S2hat(-4) related to partition number array A144284. A144285
Total sum of even parts in the last section of the set of partitions of n. A206436
Positions of +4's in A346242. A354814
a(n) = ∑k=0..floor(2·n/7) binomial(2·k,2·n-7·k). A392430
Geometric mean of the digits = 4. In other words, the product of the digits is = 4k where k is the number of digits. A61428
Geometric mean of digits = 4 and digits are in nondecreasing order. A69518
Expansion of ∏k>=1 B(xk), where B(x) is the g.f. of A003114. A327690
a(n) = ∑k=0..floor(4·n/7) binomial(k,4·n-7·k). A392355