Properties of the Number 38857

Thirty-Eight Thousand Eight Hundred Fifty-Seven

Basics

Value: 38856 → 38857 → 38858

Parity: odd

Prime: No

Previous Prime: 38851

Next Prime: 38861

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 7 ² × 13 × 61

Divisors: 1, 7, 13, 49, 61, 91, 427, 637, 793, 2989

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001011111001001

Octal: 113711

Duodecimal: 1A5A1

Hexadecimal: 97c9

Square: 1509866449

Square Root: 197.12178976460214

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

Expansion of ∏_k>=1 (1 + k·x^k)^σ(k), where σ = A000203. A318484

Expansion of exp(tan(x)/cos(x)). A9253

A musically inspired Titius-Bode-like sequence based on the geometric division of 4- and 5-dimensional space: Z_n+1 = 3 * (C(n-1, 0) + C(n-1, 1) + C(n-1, 2) + C(n-1, 3) + C(n-1, 4) + C(n-1, 5)*A059620(n+6)) + 4. A209257

Expansion of cosh(tan(x)/cos(x)). A9167

If S·2^k - 3 and S·2^k + 3 are primes for k=0 to 2, then a(n) = S/10. A93290

Numbers ending with '2' that are the difference of two positive cubes. A38857