Properties of the Number 12126

Twelve Thousand One Hundred Twenty-Six

Basics

Value: 12125 → 12126 → 12127

Parity: even

Prime: No

Previous Prime: 12119

Next Prime: 12143

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 43 × 47

Divisors: 1, 2, 3, 6, 43, 47, 86, 94, 129, 141

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111101011110

Octal: 27536

Duodecimal: 7026

Hexadecimal: 2f5e

Square: 147039876

Square Root: 110.11811840019789

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

Positive integers k such that k²⁰ + 1 is semiprime (A001358). A105282

Number of non-condensed integer partitions of n into parts > 1. A370804

Expansion of ∏_m>=1 (1+q^m)^-5. A22600

Numbers whose binary representation traces a non-selfcrossing circuit in the honeycomb lattice when each one of its bits, from the most significant to the least significant, is interpreted as a direction to proceed at each vertex. A255561

a(n) = n * ∑_d∣n binomial(d+4,5)/d. A343546

Numbers n such that for some k and a₁,a₂,...,a_k the concatenation of the a_i is equal to n and their product is equal to π(n). A97221

a(n) = smallest number m such that m² and n² share no common digits and m² and n² together use all 10 digits, a(n) = 0 if no such m exists. A158931

Numbers k such that σ(k) = φ(k+1) + φ(k) + φ(k-1). A65986

n is divisible by the sum of all divisors of n which are less than the square root of n (values of n where 1 is the only divisor less than sqrt(n) are excluded as trivial cases.). A88345

Integers k such that 10^k+57 is a prime number. A135119