Properties of the Number 61663

Sixty-One Thousand Six Hundred Sixty-Three

Basics

Value: 61662 → 61663 → 61664

Parity: odd

Prime: No

Previous Prime: 61657

Next Prime: 61667

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 7 × 23 × 383

Divisors: 1, 7, 23, 161, 383, 2681, 8809, 61663

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1111000011011111

Octal: 170337

Duodecimal: 2B827

Hexadecimal: f0df

Square: 3802325569

Square Root: 248.3203576028353

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

Total number of parts that are the smallest part or the largest part in all partitions of n. A182978

Number of similarity classes of triangles which can be drawn using the lattice points in an n X n grid for vertices. A28492

Coefficient of·in the reduction by x² -> x+1 of the polynomial p(n,x) defined below in Comments. A192422

Number of length 4 1..(n+1) arrays with every leading partial sum divisible by 2, 3, 5 or 7. A258635

Numbers k whose trajectory under the Reverse and Add! operation carried out in base 16 does not reach a palindrome and (presumably) does not join the trajectory of any term m < k. A344119

Numbers k > 1 such that, in base 9, k and k² contain the same digits in the same proportion. A61663