Properties of the Number 40643

Forty Thousand Six Hundred Forty-Three

Basics

Value: 40642 → 40643 → 40644

Parity: odd

Prime: No

Previous Prime: 40639

Next Prime: 40693

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 97 × 419

Divisors: 1, 97, 419, 40643

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001111011000011

Octal: 117303

Duodecimal: 1B62B

Hexadecimal: 9ec3

Square: 1651853449

Square Root: 201.60109126688775

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

Indices where the cumulative sum of cos(2k+1)^2k+1 reaches a record high value. A389559

Decimal part of n-th root of a(n) starts with digit 7. A34084

Number of compositions of n where the difference between largest and smallest parts equals three. A323120

Continued fraction for sqrt(669). A40643

Number of length n+3 0..6 arrays with no four elements in a row with pattern aabb (with a≠b) and new values 0..6 introduced in 0..6 order. A242582

Number of (n+1)X(2+1) 0..2 arrays with each row and column divisible by 5, read as a base-3 number with top and left being the most significant digits. A263218