Properties of the Number 16206

Sixteen Thousand Two Hundred Six

Basics

Value: 16205 → 16206 → 16207

Parity: even

Prime: No

Previous Prime: 16193

Next Prime: 16217

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 37 × 73

Divisors: 1, 2, 3, 6, 37, 73, 74, 111, 146, 219

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11111101001110

Octal: 37516

Duodecimal: 9466

Hexadecimal: 3f4e

Square: 262634436

Square Root: 127.30278865759382

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

Square pyramidal numbers: a(n) = 0² + 1² + 2² + ... + n² = n*(n+1)*(2·n+1)/6. A330

a(n) = ∑_{k=1..n, gcd(n,k) = 1} k². A53818

Six times hexagonal numbers: 6·n*(2·n-1). A152746

Sum of the squared parts of the partitions of n into exactly two parts. A226141

Sum of the squares of the parts in the partitions of n into two distinct parts. A294286

Triangle, read by rows, such that the diagonal (A084785) is the self-convolution of the first column (A084784) and the row sums (A084786) gives the differences of the diagonal and the first column. A84783

1/24 of product of three numbers: n-th prime, previous and following number. A127922

Squarefree n such that the elliptic curve n·y² = x³ - x arising in the "congruent number" problem has rank 3. A62693

a(0)=0; then a(4·k+1)=a(4·k)+(4·k+1)², a(4·k+2)=a(4·k+1)+(4·k+3)², a(4·k+3)=a(4·k+2)+(4·k+2)², a(4·k+4)=a(4·k+3)+(4·k+4)². A115391

Number of partitions of n with even minimal part and odd maximal part. A325344