Properties of the Number 1206

One Thousand Two Hundred Six

Basics

Value: 1205 → 1206 → 1207

Parity: even

Prime: No

Previous Prime: 1201

Next Prime: 1213

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 67

Divisors: 1, 2, 3, 6, 9, 18, 67, 134, 201, 402

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10010110110

Octal: 2266

Duodecimal: 846

Hexadecimal: 4b6

Square: 1454436

Square Root: 34.72751070837067

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: Yes

Fermat Number: No

Cullen Number: No

OEIS Sequences

G.f.: ∏_k>=1 (1 + x^{2·k - 1}) / (1 - x^2·k). A6950

Coefficients for expansion of (g(x)d/dx)ⁿ g(x); refined Eulerian numbers for calculating compositional inverse of h(x) = (d/dx)^-1 1/g(x); iterated derivatives as infinitesimal generators of flows. A145271

Numbers whose negated unsorted prime signature is not unimodal. A332642

Generalized 29-gonal (or icosienneagonal) numbers: m*(27·m - 25)/2 with m = 0, +1, -1, +2, -2, +3, -3, ... A303815

Numbers n such that Bernoulli number B_n has denominator 798. A272138

Number of strict integer partitions of n containing some three possibly equal parts (a,b,c) such that a + b = c. A variation of sum-full strict partitions. A363226

Number of compositions of n into Fibonacci numbers (1 counted as single Fibonacci number). A76739

Numbers that are the sum of 3 nonzero squares in 10 or more ways. A25338

Numbers m such that there are precisely 16 groups of order m. A295161

Number of partitions of n into at most 6 parts. A1402