Properties of the Number 40072

Forty Thousand Seventy-Two

Basics

Value: 40071 → 40072 → 40073

Parity: even

Prime: No

Previous Prime: 40063

Next Prime: 40087

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 5009

Divisors: 1, 2, 4, 8, 5009, 10018, 20036, 40072

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1001110010001000

Octal: 116210

Duodecimal: 1B234

Hexadecimal: 9c88

Square: 1605765184

Square Root: 200.17991907281808

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

Where records occur in A047160. A155765

Where records occur in A082467. A129302

Triangle read by rows: number of permutation trees of power n and width <= k. A179457

Integers k such that for all m>k, d(m)/m < d(k)/k where d(j) = Min_{p & q odd primes, 2·j = p+q, p <= q} (q-p)/2. A335297

Even numbers that are not the sum or difference of two binary palindromes (A006995). A290424

Numbers k such that floor(prime(k)/k) < floor(prime(k+1)/(k+1)). A308082

Continued fraction for sqrt(82). A40072

a(n) = 12n - prime(n). A245071