Properties of the Number 49171

Forty-Nine Thousand One Hundred Seventy-One

Basics

Value: 49170 → 49171 → 49172

Parity: odd

Prime: Yes

Previous Prime: 49169

Next Prime: 49177

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 49171

Divisors: 1, 49171

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100000000010011

Octal: 140023

Duodecimal: 24557

Hexadecimal: c013

Square: 2417787241

Square Root: 221.74534944390604

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

Bessel polynomials y_n(x) (see A001498) evaluated at 2. A1517

Numerators of convergents to e. A7676

Expansion of e.g.f. exp(x·C(x)) = exp((1-sqrt(1-4·x))/2), where C(x) is the g.f. of the Catalan numbers A000108. A80893

Primes p whose period of reciprocal equals (p-1)/11. A56216

Numbers k such that A361338(k) = 10. A361349

E.g.f.: exp(x)/(1-x)⁶. A96307

Numerators of upper primes-only best approximates (POBAs) to e; see Comments. A265816

Numerators of primes-only best approximates (POBAs) to e; see Comments. A265818

Numerators of "Farey fraction" approximations to e. A119014

Greedy fractional multiples of 1/e: a(1)=1, ∑_n>0 frac(a(n)/e) = 1. A79940