Properties of the Number 12220

Twelve Thousand Two Hundred Twenty

Basics

Value: 12219 → 12220 → 12221

Parity: even

Prime: No

Previous Prime: 12211

Next Prime: 12227

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 5 × 13 × 47

Divisors: 1, 2, 4, 5, 10, 13, 20, 26, 47, 52

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10111110111100

Octal: 27674

Duodecimal: 70A4

Hexadecimal: 2fbc

Square: 149328400

Square Root: 110.54410884348383

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 k for which 10k+1, 10k+3, 10k+7 and 10k+9 are primes. A7811

Sum of squares of four consecutive primes. A133524

Nonnegative integers in balanced ternary representation (with 2 standing for -1 digit). A140267

a(n) = n*(n+1)*(n+8)/6. A6503

Numbers in base -3. A73785

Expansion of (ψ(-x) / φ(-x))⁵ in powers of·where φ(), ψ() are Ramanujan θ functions. A1939

Augmented amicable pairs (smaller member of each pair). A7992

Successive positions in Tower of Hanoi (with three pegs {0,1,2}) where xyz means smallest disk is on peg z, second smallest is on peg y, third smallest on peg x, etc. and leading zeros indicate largest disks are all on peg 0. A55662

9-step Fibonacci sequence starting with 0,1,0,0,0,0,0,0,0. A251752

Numbers of rank 11 in the poset of lunar numbers. A191753