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Properties of the Number 42143

Forty-Two Thousand One Hundred Forty-Three

Basics

Value: 42142 → 42143 → 42144

Parity: odd

Prime: No

Previous Prime: 42139

Next Prime: 42157

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 17 × 37 × 67

Divisors: 1, 17, 37, 67, 629, 1139, 2479, 42143

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010010011111

Octal: 122237

Duodecimal: 2047B

Hexadecimal: a49f

Square: 1776032449

Square Root: 205.28760313277564

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

Number of integer compositions of n that are the first sums of some composition with all parts > 1. A391235
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001001. A260248
a(n) = (2·n3 + 5·n2 - 3·n)/2. A162256
Number of (w,x,y,z) with all terms in {0,...,n} and |w-x|<=|x-y|<=|y-z|. A212903
Radicands of pure cubic number fields of type β and subtype M0. A363699
"BIJ" (reversible, indistinct, labeled) transform of 2,1,1,1... A32112
Number of (n+2) X (4+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001001. A260244
Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001001. A260246
A triangular sequence based on a further generalization of the Cornelius-Schultz matrix polynomials to two sequences in i and j. a(n)=(n-1)!/f[n]: f[n]-> Fibonacci numbers; c(n)=1/n; B(i,j)=(-1)i + j*a[j + 1]*c[i + 1]/(j!*(i - j)!) as a lower triangular matrix. A135256
Denominators of continued fraction convergents to sqrt(596). A42143