Properties of the Number 20141

Twenty Thousand One Hundred Forty-One

Basics

Value: 20140 → 20141 → 20142

Parity: odd

Prime: No

Previous Prime: 20129

Next Prime: 20143

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 11 × 1831

Divisors: 1, 11, 1831, 20141

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 100111010101101

Octal: 47255

Duodecimal: B7A5

Hexadecimal: 4ead

Square: 405659881

Square Root: 141.9189909772473

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

The number of 2 X 2 matrices with all eigenvalues real and whose entries are integers with absolute value at most n. A219736

G.f. A(x) satisfies: A(x) = 1 + x + x² + x³ + x⁴ + x⁵ + x⁶ * A(x/(1 - 2·x)) / (1 - 2·x). A351345

Numbers k such that both k and k+2 are de Polignac numbers (A006285). A330284

Squares written in base 5. A1740

Least number k such that the decimal representation of 1/k has period Fibonacci(n). A170945

Number of partitions of n whose minimal excluded multiplicity is even. A299408

Number of nX4 0..1 arrays with every element unequal to 0, 1 or 2 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A317760

a(n) = ∑_i=0..n T(i,n-i), array T as in A049723. A49724

a(n) = (n+1)⁴ written in base n. A362445

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1 or 2 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A317764