Properties of the Number 12099

Twelve Thousand Ninety-Nine

Basics

Value: 12098 → 12099 → 12100

Parity: odd

Prime: No

Previous Prime: 12097

Next Prime: 12101

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 37 × 109

Divisors: 1, 3, 37, 109, 111, 327, 4033, 12099

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111101000011

Octal: 27503

Duodecimal: 7003

Hexadecimal: 2f43

Square: 146385801

Square Root: 109.99545445153632

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

3 times octagonal numbers: a(n) = 3·n*(3·n-2). A152751

a(n) = (4·n+1)*(4·n+3). A1539

Zero, together with positive numbers k such that prime(k) + k is a square. A64371

Numbers k such that φ(k) is a perfect 5th power. A78165

Numbers that are the sum of nine fourth powers in nine or more ways. A345593

Numbers that are the sum of nine fourth powers in exactly nine ways. A345851

Number of rooted triangular cacti with 2n+1 nodes (n triangles). A3080

Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k up-down runs (1 <= k <= n). A186370

After a(0)=0, numbers n such that (A002828(1+n) = 1) and (A002828(4+n) = 4). A278491

dot_product(n,n-1,...2,1)*(6,7,...,n,1,2,3,4,5). A26063