Properties of the Number 40065

Forty Thousand Sixty-Five

Basics

Value: 40064 → 40065 → 40066

Parity: odd

Prime: No

Previous Prime: 40063

Next Prime: 40087

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 2671

Divisors: 1, 3, 5, 15, 2671, 8013, 13355, 40065

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001110010000001

Octal: 116201

Duodecimal: 1B229

Hexadecimal: 9c81

Square: 1605204225

Square Root: 200.1624340379583

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

T(n,k)=Number of nXk array permutations with each element not moving, or moving one space N, SW or SE. A189435

Number of nX6 array permutations with each element not moving, or moving one space N, SW or SE. A189432

Number of 5 X n array permutations with each element not moving, or moving one space N, SW or SE. A189437

Number of length 2+2 0..n arrays with some pair in every consecutive three terms totalling exactly n. A245871

Primes p such that x³ = 13 has a solution mod p. A40065