Properties of the Number -136809

One Hundred Thirty-Six Thousand Eight Hundred Nine

Basics

Value: -136810 → -136809 → -136808

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ⁵ × 563

Divisors: 1, 3, 9, 27, 81, 243, 563, 1689, 5067, 15201

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -100001011001101001

Octal: -413151

Duodecimal: -67209

Hexadecimal: -21669

Square: 18716702481

Square Root: 369.8770065846213

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 T(n, k, m) = (m*(n-k) + 1)*T(n-1, k-1, m) + (m·k + 1)*T(n-1, k, m) - m·f(n,k)*T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1, f(n, k) = k if k <= floor(n/2) otherwise n-k, and m = 2, read by rows. A157211

Numbers n such that n | 9ⁿ + 7ⁿ + 5ⁿ + 3ⁿ. A63455