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Properties of the Number 2212

Two Thousand Two Hundred Twelve

Basics

Value: 2211 → 2212 → 2213

Parity: even

Prime: No

Previous Prime: 2207

Next Prime: 2213

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 2 × 7 × 79

Divisors: 1, 2, 4, 7, 14, 28, 79, 158, 316, 553

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 100010100100

Octal: 4244

Duodecimal: 1344

Hexadecimal: 8a4

Square: 4892944

Square Root: 47.031904065219386

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

Numbers that contain only 1's and 2's. Nonempty binary strings of length n in lexicographic order. A7931
a(n) = 1 + n + 2·n2. A84849
a(n) = n2 + 3. A117950
Number of pairwise coprime strict compositions of n, where a singleton is not considered coprime unless it is (1). A337561
Number of binary words of length n (beginning with 0) whose autocorrelation function is the indicator of a singleton. A45690
G.f. satisfies: A(x) = 1 + x·A(x) + x3*A(x)3. A71879
Numbers m such that there are precisely 9 groups of order m. A249552
Period of Fibonacci 3-step sequence A000073 mod n. A46738
Consider the base-8 Kaprekar map n->K(n) defined in A165090. Sequence gives numbers belonging to cycles, including fixed points. A165095
Multiples of 7 whose sum of digits is equal to 7. A63416