Properties of the Number 22223

Twenty-Two Thousand Two Hundred Twenty-Three

Basics

Value: 22222 → 22223 → 22224

Parity: odd

Prime: No

Previous Prime: 22193

Next Prime: 22229

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 71 × 313

Divisors: 1, 71, 313, 22223

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011011001111

Octal: 53317

Duodecimal: 10A3B

Hexadecimal: 56cf

Square: 493861729

Square Root: 149.0738072231336

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

Start with 1; for n>1, replace n with the concatenation of its prime factors in increasing order. A37276

Numbers using only digits 2 and 3. A32810

For k in {2,3,...,9} define a sequence as follows: a(0)=0; for n>=0, a(n+1)=a(n)+1, unless a(n) ends in k, in which case a(n+1) is obtained by replacing the last digit of a(n) with the digit(s) of k². This is k(4). A237341

Numbers consisting only of digits 2 and 3, ordered according to the value obtained when the digits are interspersed with (right-associative) ^ operators. A248907

Concatenation of n 2's followed by 3. A91628

Least number formed by concatenating the prime factors of n in base 10. A73646

a(1) = 1; for n > 1: a(n) = smallest odd number greater than a(n-1) which does not use any digit used by a(n-1). A229364

Jacobsthal sequence (A001045) as represented in base 4. A81857

Expansion of g.f. (1-8·x)/((1-x)*(1-10·x)). A93135

a(1)=1. a(n) = a(n-1) + sum of the triangular numbers which are among the first (n-1) terms of the sequence. A100963