Properties of the Number 12031

Twelve Thousand Thirty-One

Basics

Value: 12030 → 12031 → 12032

Parity: odd

Prime: No

Previous Prime: 12011

Next Prime: 12037

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 53 × 227

Divisors: 1, 53, 227, 12031

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111011111111

Octal: 27377

Duodecimal: 6B67

Hexadecimal: 2eff

Square: 144744961

Square Root: 109.68591523071684

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

Composite numbers generated by the Euler polynomial x² + x + 41. A145292

Matula-Goebel numbers of orderless same-trees with all leaves equal to 1. A291441

Decimal value of the bitmap of active segments in 7-segment display of the number n, variant 1: bits 0-6 refer to segments from top to bottom, left to right. A234691

A sequence of asymptotic density ζ(9) - 1, where ζ is the Riemann ζ function. A143035

a(n) = ∑_{k=0..floor(3·n/5)} binomial(k,3·n-5·k). A392271

Semiprimes generated by the Euler polynomial x² + x + 41. A228183

a(n) = ∑_k=1..n binomial(floor(n/k)+2,3). A364970

a(n) = 12 + floor((1 + ∑_j=1..n-1 a(j))/4). A120169

Expansion of ∏_k>=1 (1 + x^2·k+1)^k. A263149

a(n) = ∑_{k=0..floor(2·n/5)} binomial(k+1,2·n-5·k). A390020