Properties of the Number 49869

Forty-Nine Thousand Eight Hundred Sixty-Nine

Basics

Value: 49868 → 49869 → 49870

Parity: odd

Prime: No

Previous Prime: 49853

Next Prime: 49871

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 1847

Divisors: 1, 3, 9, 27, 1847, 5541, 16623, 49869

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100001011001101

Octal: 141315

Duodecimal: 24A39

Hexadecimal: c2cd

Square: 2486917161

Square Root: 223.31368072735714

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 k such that prime(k) + prime(k+1) + prime(k+2) is a square. A76305

2·a(n)/n! is the average number of key comparisons required to sort n records with distinct keys using heapsort (Algorithm H in Don Knuth's TAOCP Vol. 3). A350428

Numbers generated by recursive procedure a(n) = nozero(a(n-1) * 3), in which the function nozero(x) removes all zeros from x, starting with a(1) = 1. A243845

Number of Hamiltonian paths in the graph on n vertices {1,...,n}, with i adjacent to j iff |i-j| in {1,3}. A302119

Antidiagonal sums of table A083050. A83053

Numbers k such that k² +/- (k-1) and (k-1)*k² +/- 1 are all primes. A239326

Number of (n+1) X (2+1) 0..3 arrays with every 2 X 2 subblock summing to a nonzero multiple of 3. A251337

Number of equivalence classes of 3-valued Post functions of n variables under action of group GL(n,3). A49869