Properties of the Number 40073

Forty Thousand Seventy-Three

Basics

Value: 40072 → 40073 → 40074

Parity: odd

Prime: No

Previous Prime: 40063

Next Prime: 40087

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 11 × 3643

Divisors: 1, 11, 3643, 40073

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1001110010001001

Octal: 116211

Duodecimal: 1B235

Hexadecimal: 9c89

Square: 1605845329

Square Root: 200.18241681026834

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

Numbers k such that prime(k) == 5 (mod k). A23147

Values of π(x) where·exceeds n * π(x). A38624

T(n,k)=Number of nXk 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors. A183483

Least k such that k-th prime > n·k. A38606

Index j of prime p(j) such that floor(p(j)/j) = n is first satisfied. A62742

Least integer k > 0 such that prime(k) - k·n is prime. A247895

Numbers n such that prime(n) mod n <= 10. A22465

Numbers k such that φ(prime(k) + 1) == 0 (mod k). A67732

Number of nX4 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors. A183478

Number of nX5 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors. A183479