Properties of the Number 49680

Forty-Nine Thousand Six Hundred Eighty

Basics

Value: 49679 → 49680 → 49681

Parity: even

Prime: No

Previous Prime: 49669

Next Prime: 49681

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ³ × 5 × 23

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100001000010000

Octal: 141020

Duodecimal: 24900

Hexadecimal: c210

Square: 2468102400

Square Root: 222.8901074520805

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

G.f. satisfies: A(x) = 1 + x·A(x)*d/dx[x·A(x)] = 1 + x·A(x)² + x²*A(x)*A'(x). A88716

Positive numbers m such that m² - 1 divides 2^m - 1. A247219

Numbers i such that Fibonacci(i) is divisible by i, i+1, i+2, and i+3. A298685

Numbers i such that Fibonacci(i) is divisible by i+k for k=0,1,2,3,4. A298686

Triangle T, read by rows, such that the matrix inverse satisfies: [T^-1](n,k) = -(k+1)*T(n-1,0) for n>k>=0, with T(n,n)=1 for n>=0. A112911

Number of rooted connected graphs on n labeled nodes where the root has degree 2. A38095

Numbers k such that k+1 is a prime, k+2 is twice a prime, k+3 is three times a prime, and k+4 is four times a prime. A278585

G.f. A(x,y) satisfies: A(x,y) = x * (1 + y·A(x,y)*A'(x,y)) / (1 + A(x,y)*A'(x,y)), where A'(x,y) = d/dx A(x,y). A301930

Numbers k such that 2^k - 1 is divisible by (k-1). A87965

Numbers k such that if you subtract k-reversed from k you get a natural number with the same digits as k. A121969