Properties of the Number 22143

Twenty-Two Thousand One Hundred Forty-Three

Basics

Value: 22142 → 22143 → 22144

Parity: odd

Prime: No

Previous Prime: 22133

Next Prime: 22147

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 11 ² × 61

Divisors: 1, 3, 11, 33, 61, 121, 183, 363, 671, 2013

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011001111111

Octal: 53177

Duodecimal: 10993

Hexadecimal: 567f

Square: 490312449

Square Root: 148.8052418431555

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

Base-3 digits are, in order, the first n terms of the periodic sequence with initial period 1,0. A33113

Row 6 of rectangular table A124460. A124466

Square array A(n,k) = A341526(A246278(n,k)), read by falling antidiagonals; Numerators of the columnwise first quotients of A341605/A341606. A341626

a(0)=3; a(n) = n² + a(n-1) for n>0. A153057

Number of integer partitions of n whose LCM is less than n. A327781

a(n) = σ(A003961(n²)), where A003961 is fully multiplicative with a(prime(i)) = prime(i+1), and σ is the sum of divisors function. A379482

Numbers that are repdigits in base 9. A48334

Number of chains in the power set lattice of an (n+3)-element set X_n+3 of specification n¹ 2¹ 1, that is, n identical objects of one kind, 2 identical objects of another kind and one other kind. It is the same as the number of fuzzy subsets X_n+3. A107953

Main diagonal of A368179: the n-th term in the trajectory of n under the A006368 map. A368180

Rectangular array, read by antidiagonals: row n consists of the numbers m whose ternary representation has exactly n runs. A370893