Properties of the Number 47995

Forty-Seven Thousand Nine Hundred Ninety-Five

Basics

Value: 47994 → 47995 → 47996

Parity: odd

Prime: No

Previous Prime: 47981

Next Prime: 48017

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 5 × 29 × 331

Divisors: 1, 5, 29, 145, 331, 1655, 9599, 47995

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011101101111011

Octal: 135573

Duodecimal: 23937

Hexadecimal: bb7b

Square: 2303520025

Square Root: 219.07761181827777

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

Number of palindromic primes less than 10ⁿ. A50251

Numbers n such that φ(n-1) + φ(n+1) = φ(2n). A67701

Expansion of (1+x²)*(1+x⁵)/( ∏_j=1..7 (1-x^j) ). A60962

Number of 4-step one space for components leftwards or up, two space for components rightwards or down asymmetric quasi-bishop's tours (antidiagonal moves become knight moves) on an n X n board summed over all starting positions. A187608

Smallest positive multiple of n whose base-6 representation contains only 0's and 1's. A244957

a(n) = -a(n-6) + 3·a(n-5) + a(n-4) - 7·a(n-3) + a(n-2) + 3·a(n-1). A122504

Palindromic primes: prime numbers whose decimal expansion is a palindrome. A2385

Number of impartial misere games born on or before day n. A47995

a(1)=4. For n>=2, a(n) = smallest integer > a(n-1) that is not coprime to (n+1) but is coprime to n. A139558