Properties of the Number 12127

Twelve Thousand One Hundred Twenty-Seven

Basics

Value: 12126 → 12127 → 12128

Parity: odd

Prime: No

Previous Prime: 12119

Next Prime: 12143

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 67 × 181

Divisors: 1, 67, 181, 12127

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10111101011111

Octal: 27537

Duodecimal: 7027

Hexadecimal: 2f5f

Square: 147064129

Square Root: 110.12265888544464

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 perfect powers (A001597) < 2ⁿ. A188951

Magic constants of 5 X 5 magic squares which consist of consecutive primes. A176571

Numbers k that divide 2^k + 10. A245594

Number of triples (i,j,k) with 1 <= i < j < k <= n and gcd(i,j,k) = 1. A15616

Numbers n such that φ(n) = φ(n+12) and n is not divisible by 2. A217141

Numerators of continued fraction convergents to sqrt(308). A41580

This sequence and A139143 are complements. a(1) = 1, A139143(1) = 2, a(n+1) = a(n) + ∑_{k = 1..n} A139143(k). A139142

Number of 2 X 2 matrices with all terms in {-n,..,0,..,n} and (sum of terms) = determinant. A281194

Solution of the complementary equation a(n) = 2·a(n-1) - a(n-2) + b(n-1) + 3, where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences. A294871

Indices of primes in sequence defined by A(0) = 71, A(n) = 10·A(n-1) + 41 for n > 0. A101143