Properties of the Number -2129

One Hundred Twenty-Nine

Basics

Value: -2130 → -2129 → -2128

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2129

Divisors: 1, 2129

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100001010001

Octal: -4121

Duodecimal: -1295

Hexadecimal: -851

Square: 4532641

Square Root: 46.14108798023731

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

Primes or negative values of primes in the sequence b(n) = 47·n² - 1701·n + 10181, n >= 0. A50267

a(n) = ∑_{k=0..floor(n/4)} (-1)^k * binomial(n-3·k,k) * Catalan(k). A360026

Expansion of 1 / ∑_{k in Z} x^k / (1 - x^5·k+1). A375062

a(n) = 137·n² - 4043·n + 27277. A267706

Primes having only {1, 2, 9} as digits. A385776

Primes of the form 2x² + 2xy + 17y². A139827

Partial sums of A299279. A299280

Primes p such that p² + p + 1 is prime. A53182

Smallest prime > n². A7491

The slowest increasing sequence of primes such that difference of successive terms is unique. A84758