Properties of the Number -2069

Sixty-Nine

Basics

Value: -2070 → -2069 → -2068

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2069

Divisors: 1, 2069

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -100000010101

Octal: -4025

Duodecimal: -1245

Hexadecimal: -815

Square: 4280761

Square Root: 45.48626166217664

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

Coefficient of xⁿ in (∏_m=1..n(1-x^m))ⁿ. A8705

Row sums of a number triangle related to the Pell numbers. A110331

Bisection of A008705. A262308

Expansion of ∏_k>=1 (1 - x^k)¹¹. A10819

The real part of b(n) where b(n) = (n + b(n-1)) * (1 + i) with b(-1)=0; i = sqrt(-1). A309878

G.f.: ∑_n>=0 (2·n+1) * xⁿ * (1 - xⁿ)ⁿ. A326607

a(n) = n + (n+1)². A28387

Primes whose binary representation is also the decimal representation of a prime. A65720

Primes of the form k² - k - 1. A2327

Friedlander-Iwaniec primes: Primes of form a² + b⁴. A28916