Properties of the Number 31827

Thirty-One Thousand Eight Hundred Twenty-Seven

Basics

Value: 31826 → 31827 → 31828

Parity: odd

Prime: No

Previous Prime: 31817

Next Prime: 31847

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 103 ²

Divisors: 1, 3, 103, 309, 10609, 31827

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111110001010011

Octal: 76123

Duodecimal: 16503

Hexadecimal: 7c53

Square: 1012957929

Square Root: 178.40123317959436

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 sets of nonempty subsets of {1,...,n} with intersection {}. A318129

3p² where p runs through the primes. A79705

Number of multiples of n which have only distinct and nonzero digits in base 10. A328287

3·h², where h is an odd integer not divisible by 3. A229852

Numbers that can be represented in more than one way as p²+p·q+q² with p and q primes, p<=q. A349987

Numbers of the form p²*q, with odd primes p > q, such that q divides p-1. A350638

Composite numbers k+1 such that k*φ(k+1) is a perfect square. A69068

Numbers of the form 20·k+7 which are three times a square. A192328

A recurrence relation conditioned on the primality of the preceding terms. A236768

a(n) is the smallest dividend m of the Euclidean division m = d·n + r such that m/d = r/n. A335717