Properties of the Number 40069

Forty Thousand Sixty-Nine

Basics

Value: 40068 → 40069 → 40070

Parity: odd

Prime: No

Previous Prime: 40063

Next Prime: 40087

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 17 × 2357

Divisors: 1, 17, 2357, 40069

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001110010000101

Octal: 116205

Duodecimal: 1B231

Hexadecimal: 9c85

Square: 1605524761

Square Root: 200.1724256734678

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

a(n) is the number of hierarchical linear models on n labeled factors allowing 2-way interactions (but no higher order interactions); or the number of simple labeled graphs with nodes chosen from an n-set. A6896

Numbers n such that either prime(n-1) == -1 (mod n) or prime(n+1) == -1 (mod n) but not both. A225318

Primes p such that x³ = 15 has a solution mod p. A40069

G.f. A(x) satisfies A(x - A(x)) = x² + x·A(x). A392203