Properties of the Number 80200

Eighty Thousand Two Hundred

Basics

Value: 80199 → 80200 → 80201

Parity: even

Prime: No

Previous Prime: 80191

Next Prime: 80207

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 5 ² × 401

Divisors: 1, 2, 4, 5, 8, 10, 20, 25, 40, 50

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011100101001000

Octal: 234510

Duodecimal: 3A4B4

Hexadecimal: 13948

Square: 6432040000

Square Root: 283.1960451701259

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) = n²*(n² + 1)/2. A37270

Numbers k such that the symmetric representation of σ(k) has only two parts and they meet at the center of the Dyck path. A262259

T(n,k) = Number of n X k 0..1 arrays with the number of 1's king-move adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero. A284113

Triangular numbers with sum of digits = 10. A68129

n+φ(n)+φ(φ(n)) is a cube. A116042

Triangular numbers with only even digits. A117978

Triangular numbers T from A000217 such that (4·T+1)/13 is prime. A208294

Triangular numbers composed of digits {0,2,8}. A119055

Number of (w,x,y,z) with all terms in {0,...,n} and at least one of these conditions holds: w<R, x<R, y<R, z>R, where R=max{w,x,y,z}-min{w,x,y,z}. A212752

Chessboard rectangles sequence (see Comments), also A037270 interleaved with A163102. A317714