Properties of the Number 4049

Four Thousand Forty-Nine

Basics

Value: 4048 → 4049 → 4050

Parity: odd

Prime: Yes

Previous Prime: 4027

Next Prime: 4051

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 4049

Divisors: 1, 4049

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111111010001

Octal: 7721

Duodecimal: 2415

Hexadecimal: fd1

Square: 16394401

Square Root: 63.631753079732135

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) = 2·n² - 1. A56220

Primes of form n² + n + 17. A7635

Primes of the form 36·k² - 810·k + 2753, listed in order of increasing parameter k >= 0. A50268

Primes of the form 2·n² - 1. A66436

Centered 16-gonal numbers. A69129

a(0) = 0 and then alternately even and odd numbers in increasing order such that the sum of any two successive terms is a square. A77221

Lucas and Lehmer numbers with parameters (1 +- sqrt(-7))/2. A107920

Primes that do not contain any other prime as a proper substring. A33274

Prime numbers congruent to 1 modulo 16 representable by both x² + 32·y² and x² + 64·y². A325067

Primes with first digit 4. A45710