Properties of the Number 49081

Forty-Nine Thousand Eighty-One

Basics

Value: 49080 → 49081 → 49082

Parity: odd

Prime: Yes

Previous Prime: 49069

Next Prime: 49103

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 49081

Divisors: 1, 49081

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011111110111001

Octal: 137671

Duodecimal: 244A1

Hexadecimal: bfb9

Square: 2408944561

Square Root: 221.54232101339014

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

Indices of prime repunits: numbers k such that 11...111 (with k 1's) = (10^k - 1)/9 is prime. A4023

Primes that become squares when prefixed with a 5. A167738

Primes p such that p+2, p+4, p+6, p+8, p+10 and p+12 are all semiprime. A241483

Expansion of 1/((1-2x)(1-9x)(1-10x)). A16321

Half-quartan primes: primes of the form p = (x⁴ + y⁴)/2. A2646

Triangle formed when cumulative boustrophedon transform is applied to 1, 0, 0, 0, ..., read by rows from left to right. A59431

Triangle formed when cumulative boustrophedon transform is applied to 1, 0, 0, 0, ..., read by rows in natural order. A59432

Number of integers in n-th generation of tree T(3/4) defined in Comments. A274146

a(n+5) = (a(n+4)*a(n+1) + 2·a(n+3)*a(n+2))/a(n). A105236

Primes p such that p+2, p+4, p+6, p+8, p+10 are semiprimes. A241959