Properties of the Number 12266

Twelve Thousand Two Hundred Sixty-Six

Basics

Value: 12265 → 12266 → 12267

Parity: even

Prime: No

Previous Prime: 12263

Next Prime: 12269

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 6133

Divisors: 1, 2, 6133, 12266

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10111111101010

Octal: 27752

Duodecimal: 7122

Hexadecimal: 2fea

Square: 150454756

Square Root: 110.75197515168747

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 stacks of n triangles, pointing upwards or downwards depending on row parity. A224704

a(n) is the number of numbers removed in each step of Eratosthenes's sieve for 10!. A145537

Irregular triangle read by rows: T(n,k) is the number of inequivalent connected induced k-vertex subgraphs of the hypercube graph of dimension n >= 0, 1 <= k <= 2ⁿ. A369605

Number of ordered 2-multiantichains on an n-set. A92880

The difference between the number of partitions of 2n into odd parts (A000009) and the number of partitions of 2n into even parts (A035363). A282893

Semiprimes in A033951. A113691

Triangle read by rows: T(1,1)=1, T(n,k) = T(n,k+1)+T(n-k,max(2·floor(k/2)-1,1)) and T(n,k) = 0 if k > A316355(n). A316354

G.f.: exp( ∑_n>=1 2^A090740(n) * xⁿ/n ) where A090740(n) = highest exponent of 2 in 3ⁿ-1. A182000

Numbers m such that the product of m and the string m in reverse contains m as a substring. A342127

McKay-Thompson series of class 30d for Monster. A58625