Properties of the Number 27939

Twenty-Seven Thousand Nine Hundred Thirty-Nine

Basics

Value: 27938 → 27939 → 27940

Parity: odd

Prime: No

Previous Prime: 27919

Next Prime: 27941

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 67 × 139

Divisors: 1, 3, 67, 139, 201, 417, 9313, 27939

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110110100100011

Octal: 66443

Duodecimal: 14203

Hexadecimal: 6d23

Square: 780587721

Square Root: 167.1496335622666

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 partitions p of n such that median(p) <= mean(p). A240218

p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - S³ - S⁴. A291223

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 161", based on the 5-celled von Neumann neighborhood. A270452

Numbers k such that {k + 2, k + 4} and {k³ + 2, k³ + 4} are twin prime pairs. A284058

a(n) = ∑_k=0..n (k+1) * A026758(n, n-k). A27236

a(n) = T(2·n, n+3), T given by A027935. A27939

Triangular numbers T such that T-2 is semiprime. A242344