Properties of the Number -326430

Three Hundred Twenty-Six Thousand Four Hundred Thirty

Basics

Value: -326431 → -326430 → -326429

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ⁴ × 5 × 13 × 31

Divisors: 1, 2, 3, 5, 6, 9, 10, 13, 15, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -1001111101100011110

Octal: -1175436

Duodecimal: -138AA6

Hexadecimal: -4fb1e

Square: 106556544900

Square Root: 571.3405289317396

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

Triangle, read by rows, T(n,k) = f(n,k) - f(n,0) + 1, where f(n,k) = ∑_j=0..k (n+k)!/((n-j)!*(k-j)!*j!) + ∑_j=0..n-k (2·n-k)!/((n-j)!*(n - k-j)!*j!). A176082

a(n) = T(2n-1,n), where T is the array defined in A026082. A26088