Properties of the Number 22103

Twenty-Two Thousand One Hundred Three

Basics

Value: 22102 → 22103 → 22104

Parity: odd

Prime: No

Previous Prime: 22093

Next Prime: 22109

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 23 × 31 ²

Divisors: 1, 23, 31, 713, 961, 22103

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101011001010111

Octal: 53127

Duodecimal: 1095B

Hexadecimal: 5657

Square: 488542609

Square Root: 148.6707772226943

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

a(n) = 23·n². A244632

Primeshift array for primegap shift: Square array read by antidiagonals: A(1,col) = 3·col, and for row > 1, A(row,col) = A389084(A(row-1,col)). A389086

Maximal non-semiprime number which is a "preprime" of the n-th kind (defined in comment in A247395). A247834

Numbers p²*q, p > q odd primes such that q does not divide p-1, and q does not divide p+1. A350421

Number of non-isomorphic maximal independent sets of the n-cycle graph. A127685

G.f.: ∏_k>=1 (1 + x^k) / (1 - x^k*(k+1/2)). A280422

a(n) is the index of the n-th nonattacking queen placed by a greedy algorithm on a subset of N^N (see Comments for details). A309817

Odd numbers k such that A173557(k) = A173557(σ(k)), where A173557(n) is multiplicative with a(p^e) = p-1 and σ is the sum of divisors function. A387159

Number of binary arrays indicating the locations of trailing edge maxima of a random length-n 0..4 array extended with zeros and convolved with 1,2,1. A222123

Fibonacci sequence beginning 1, 13. A22103