Properties of the Number 31126

Thirty-One Thousand One Hundred Twenty-Six

Basics

Value: 31125 → 31126 → 31127

Parity: even

Prime: No

Previous Prime: 31123

Next Prime: 31139

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 79 × 197

Divisors: 1, 2, 79, 158, 197, 394, 15563, 31126

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100110010110

Octal: 74626

Duodecimal: 1601A

Hexadecimal: 7996

Square: 968827876

Square Root: 176.42562172201633

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

Numbers n such that n¹⁰²⁴ + 1 is prime (a generalized Fermat prime). A57002

Expansion of (x-1)²/(1-x²-2·x³). A159286

G.f.: A(x) = exp( ∑_n>=1 G_n(xⁿ)³ * xⁿ/n ) such that G_n(xⁿ) = ∏_k=0..n-1 A(u^k*x) where u is an n-th root of unity. A203268

Number of one-element transitions among all integer partitions of the integers from m=0 to m=n in the unlabeled case. A96586

Numbers k such that k² + 1 = p·q, p and q primes and |p-q| is square. A187401

a(n) is the smallest positive number k such that (product of the first n odd primes) + k² is a square. A349708

Number of proper factorizations of p1ⁿ*p2³, where p1 and p2 are distinct primes. A31126