Properties of the Number 1671

One Thousand Six Hundred Seventy-One

Basics

Value: 1670 → 1671 → 1672

Parity: odd

Prime: No

Previous Prime: 1669

Next Prime: 1693

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 557

Divisors: 1, 3, 557, 1671

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010000111

Octal: 3207

Duodecimal: B73

Hexadecimal: 687

Square: 2792241

Square Root: 40.87786687193939

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 partitions of n into at most 1 copy of 1, 2 copies of 2, 3 copies of 3, ... . A52335

Coordination sequence for "ubt" 3D uniform tiling. A299291

Triangle Q, read by rows, such that Q² transforms column k of Q² into column k+1 of Q², so that column k of Q² equals column 0 of Q^2·k+2, where Q² denotes the matrix square of Q. A113350

Mountain numbers. A134941

Number of partitions of n into distinct double-free parts. A120641

a(n) = ∑_m=1..n ∑_k=1..m prime(k). A14148

a(n) = first unlucky number removed at the n-th stage of Lucky sieve. A219178

Numbers n such that p(2n) is prime, where p(n) is the number of partitions of n. A114165

G.f.: ∏_k>=1 1/(1-x^k)^2·k-1. A253289

Inverse binomial transform of A032346. A32347