Properties of the Number -30718

Thirty Thousand Seven Hundred Eighteen

Basics

Value: -30719 → -30718 → -30717

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

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

7925 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