Properties of the Number 80446

Eighty Thousand Four Hundred Forty-Six

Basics

Value: 80445 → 80446 → 80447

Parity: even

Prime: No

Previous Prime: 80429

Next Prime: 80447

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 19 × 29 × 73

Divisors: 1, 2, 19, 29, 38, 58, 73, 146, 551, 1102

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011101000111110

Octal: 235076

Duodecimal: 3A67A

Hexadecimal: 13a3e

Square: 6471558916

Square Root: 283.63004072206456

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

G.f. A(x) satisfies A(x) = (1 + x·A(x)/(1 - x·A(x))²)². A365133

Triangle read by rows: T(n, k) = binomial(n, k) + 2*(1 + n! - k! - (n-k)!). A156049

a(1) = 2, a(n) = smallest (nontrivial) multiple of a(n-1) containing n digits, a(n) not equal to 10·a(n-1). A80446