Properties of the Number 9800

Nine Thousand Eight Hundred

Basics

Value: 9799 → 9800 → 9801

Parity: even

Prime: No

Previous Prime: 9791

Next Prime: 9803

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 5 ² × 7 ²

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 20, 25

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10011001001000

Octal: 23110

Duodecimal: 5808

Hexadecimal: 2648

Square: 96040000

Square Root: 98.99494936611666

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

Expansion of 1/((1 - x)*(1 - 2·x - x²)). A48739

a(n)-th triangular number is a square: a(n+1) = 6·a(n) - a(n-1) + 2, with a(0) = 0, a(1) = 1. A1108

a(n) = n*(n+1)*(2·n+1)/3. A6331

Expansion of (1+x²)/((1-x)²*(1-x²)²). A5993

Ruth-Aaron numbers (1): sum of prime divisors of n = sum of prime divisors of n+1. A6145

Triangle read by rows: T(n, k) = (k+1)*A132393(n+1, k+1), for 0 <= k <= n. A28421

a(n) = 8·n². A139098

X-values of solutions to the equation X*(X + 1) - 8·Y² = 0. A132592

a(n) = smallest number m such that for all k > m, either k or k+1 has a prime factor > prime(n). A2072

Numbers k such that k and k+1 are powerful numbers. A60355