Properties of the Number 446

Four Hundred Forty-Six

Basics

Value: 445 → 446 → 447

Parity: even

Prime: No

Previous Prime: 443

Next Prime: 449

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 223

Divisors: 1, 2, 223, 446

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111110

Octal: 676

Duodecimal: 312

Hexadecimal: 1be

Square: 198916

Square Root: 21.118712081942874

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: T(n,k) is the number of compositions of n into nonzero parts with k parts directly followed by a different part, n>=0, 0<=k<=A004523(n-1). A238279

The primes doubled; even semiprimes. A100484

Self numbers or Colombian numbers (numbers that are not of the form m + sum of digits of m for any m). A3052

Increasing sequence generated by these rules: a(1)=1, and if·is in a then 3x-2 and 4x-2 are in a. A191113

Infinite sequence starting with a(0)=0 such that A049820(a(k)) = a(k-1) for all k>=1, where A049820(n) = n - (number of divisors of n). A259934

Numbers k with A033676(k)=2, where A033676 is the largest divisor <= sqrt(k). A161344

Numbers k for which (9 + k!)/9 is prime. A137390

Number of double-free integer partitions of n. A323092

Numbers k such that Bernoulli number B_k has denominator 6. A51222

Numbers k such that the sum of the first k primes is prime. A13916