Properties of the Number 20461

Twenty Thousand Four Hundred Sixty-One

Basics

Value: 20460 → 20461 → 20462

Parity: odd

Prime: No

Previous Prime: 20443

Next Prime: 20477

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 7 × 37 × 79

Divisors: 1, 7, 37, 79, 259, 553, 2923, 20461

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100111111101101

Octal: 47755

Duodecimal: BA11

Hexadecimal: 4fed

Square: 418652521

Square Root: 143.0419518882485

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

Centered 44-gonal numbers. A195318

Number of vertices formed in a square by straight line segments when connecting the four corner vertices to the points dividing the sides into n equal parts. A355949

Square array A(n,k), n >= 0, k >= 1, read by antidiagonals, where column k is the expansion of e.g.f. exp(∑_j=1..k j·x^j). A293718

Sum of numbers in the n-th antidiagonal of the reciprocity array of 2. A259580

Denominators of continued fraction convergents to sqrt(364). A41689

Least k such that floor(k/rⁿ)=n, where r = golden ratio = (1+sqrt(5))/2. A182614

Numbers whose set of base-11 digits is {1,4}. A32823

Sum of the primes in ordered 3 X 3 prime squares. A105089

Number of length 4+1 0..n arrays with the sum of the minimum of each adjacent pair multiplied by some arrangement of +-1 equal to zero. A250421

Number of length-4 0..n arrays with no adjacent pair x,x+1 followed at any distance by x+1,x. A268458