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Properties of the Number 30718

Thirty Thousand Seven Hundred Eighteen

Basics

Value: 30717 → 30718 → 30719

Parity: even

Prime: No

Previous Prime: 30713

Next Prime: 30727

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 15359

Divisors: 1, 2, 15359, 30718

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111011111111110

Octal: 73776

Duodecimal: 1593A

Hexadecimal: 77fe

Square: 943595524

Square Root: 175.26551286548076

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 (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change 1,0 0,-1 1,2 or -1,1. A264583
G.f. satisfies: A(x) = (4 + A(x)4) / (5-x). A244856
a(0) = 1, a(1) = 5, a(2) = 13; a(n) = 2·a(n-1) + 2, n > 2. A60182
Number of integers in n-th generation of tree T(2-1/2) defined in Comments. A274156
Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 90 ones. A31858
Number of length n 1..(3+1) arrays with every leading partial sum divisible by 2, 3 or 5. A254822
Number of (n+1)X(6+1) arrays of permutations of 0..n·7+6 with each element having directed index change 1,0 0,-1 1,2 or -1,1. A264581
Number of (5+1)X(n+1) arrays of permutations of 0..n·6+5 with each element having directed index change 1,0 0,-1 1,2 or -1,1. A264588
T(n,k)=Number of length n 1..(k+1) arrays with every leading partial sum divisible by 2, 3 or 5. A254827
The second list after the following procedure: starting with a list [1] and an empty list, repeatedly add the distinct values already in the first list in ascending order to the second list and add the corresponding frequencies of those values to the first list. A30718