Properties of the Number 30879

Thirty Thousand Eight Hundred Seventy-Nine

Basics

Value: 30878 → 30879 → 30880

Parity: odd

Prime: No

Previous Prime: 30871

Next Prime: 30881

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 47 × 73

Divisors: 1, 3, 9, 47, 73, 141, 219, 423, 657, 3431

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111100010011111

Octal: 74237

Duodecimal: 15A53

Hexadecimal: 789f

Square: 953512641

Square Root: 175.72421574728966

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

Odd numbers k that can be factored to such a pair of coprime factors·and y that A347381(k) < min(A347381(x), A347381(y)). A347390

a(n) = ∑_y=1..n ∑_x=1..n floor((x^k + y^k)^1/k) with k = 3. A211792

Number of nX4 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0), with upper left element zero. A278153

[ exp(13/18)*n! ]. A30879