Properties of the Number 39993

Thirty-Nine Thousand Nine Hundred Ninety-Three

Basics

Value: 39992 → 39993 → 39994

Parity: odd

Prime: No

Previous Prime: 39989

Next Prime: 40009

Digit Sum: 33

Digital Root: 6

Palindrome: Yes

Factorization: 3 × 13331

Divisors: 1, 3, 13331, 39993

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001110000111001

Octal: 116071

Duodecimal: 1B189

Hexadecimal: 9c39

Square: 1599440049

Square Root: 199.982499234308

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 that are palindromic in bases 2 and 10. A7632

Palindromes with exactly 2 palindromic prime factors (counted with multiplicity), and no other prime factors. A46376

Numbers such that RevBinary() = RevDecimal(), where RevDecimal(n) is the decimal reversal of n (A004086) and RevBinary(n) is the binary reversal of n (A030101). A81434

Smallest palindrome with digit sum = n. A62388

Palindromes with exactly 2 distinct palindromic prime factors. A46408

G.f. satisfies A(x) = x*(1+A²)²/(1-A+A²). A101490

For any number n with runs in binary expansion (r_w, ..., r₀), let p(n) be the polynomial of a single indeterminate·where the coefficient of x^e is r_e for e = 0..w and otherwise 0, and let q be the inverse of p; a(n) = q(p(n)²). A355654

Palindromes expressible as the sum of 3 consecutive palindromes. A46498

Positive integers n that are palindromic in base 2 and whose binary representation has the same number of 0's as 1's. A143905

Numbers such that harmonic mean of digits is 5. A62183