Properties of the Number 30946

Thirty Thousand Nine Hundred Forty-Six

Basics

Value: 30945 → 30946 → 30947

Parity: even

Prime: No

Previous Prime: 30941

Next Prime: 30949

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 15473

Divisors: 1, 2, 15473, 30946

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111100011100010

Octal: 74342

Duodecimal: 15AAA

Hexadecimal: 78e2

Square: 957654916

Square Root: 175.9147520817967

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

T(n,k)=Number of nXk 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 1 neighboring 1s. A297224

Number of subsets of {1,..,n} of cardinality >= 2 such that the elements of each counted subset are pairwise coprime. A276187

Numbers k such that k divides the number of overpartitions of k (A015128). A299961

Non-Brauer numbers. A349044

Number of conjugacy classes in twisted Chevalley group 3D4(q) as q runs through the prime powers. A225930

Number of n X 5 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 1 neighboring 1s. A297221

Number of 6Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 1 neighboring 1s. A297228

[ exp(2/11)*n! ]. A30946