Properties of the Number 2171

Two Thousand One Hundred Seventy-One

Basics

Value: 2170 → 2171 → 2172

Parity: odd

Prime: No

Previous Prime: 2161

Next Prime: 2179

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 13 × 167

Divisors: 1, 13, 167, 2171

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100001111011

Octal: 4173

Duodecimal: 130B

Hexadecimal: 87b

Square: 4713241

Square Root: 46.593991028886975

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

a(n) = largest number of distinct words arising in Post's tag system {00, 1101} applied to a binary word w, over all starting words w of length n, or a(n) = -1 if there is a word w with an unbounded trajectory. A284116

Odd numbers not of form p + 2^k (de Polignac numbers). A6285

Number of unlabeled 2-trees with n nodes. A54581

Generalized 26-gonal (or icosihexagonal) numbers: m*(12·m - 11) with m = 0, +1, -1, +2, -2, +3, -3, ... A316724

Triangle P, read by rows, where column k of P² equals column 0 of P^2k+2 such that column 0 of P² equals column 0 of P shift one place left, with P(0,0)=1. A135880

Decimal encoding of the prime factorization of n: concatenation of prime factors and exponents. A67599

Numbers n such that the decimal expansions of both n and n² have 1 as smallest digit and 7 as largest digit. A257210

Number of bipartite partitions of (i,j) with i+j = n into distinct pairs. A219555

Postludic numbers: Second column of Ludic array A255127. A254100

Numbers whose smallest prime factor is 13. A84970