Properties of the Number -88209

Eighty-Eight Thousand Two Hundred Nine

Basics

Value: -88210 → -88209 → -88208

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ⁶ × 11 ²

Divisors: 1, 3, 9, 11, 27, 33, 81, 99, 121, 243

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: -10101100010010001

Octal: -254221

Duodecimal: -43069

Hexadecimal: -15891

Square: 7780827681

Square Root: 297

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

Triangle read by rows: the coefficient [x^k] of the polynomial ∏_i=1..n (3^i-1-x) in row n, column k, 0 <= k <= n. A157783

Squares of partition numbers. A1255

Numbers of the form 3ⁱ*11^j. A3597

Numbers of the form (9ⁱ)*(11^j), with i, j >= 0. A108687

Numbers with prime factorization p²*q⁶. A189990

Squares with initial digit '8'. A45792

a(n) = ∑_{k=1..n, gcd(n,k) = 1} k³. A53819

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 0 vertically. A208078

Numbers n that can be chopped into two parts, which when added and squared result in n. A102766

Numbers which can be expressed as the product of numbers made of only threes. A161141