Properties of the Number -209365

Two Hundred Nine Thousand Three Hundred Sixty-Five

Basics

Value: -209366 → -209365 → -209364

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 13 × 3221

Divisors: 1, 5, 13, 65, 3221, 16105, 41873, 209365

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110011000111010101

Octal: -630725

Duodecimal: -A11B1

Hexadecimal: -331d5

Square: 43833703225

Square Root: 457.56420314530726

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

a(n) = a(n-1) + a(n-5); a(0) = ... = a(4) = 1. A3520

Expansion of 1/(1 -x⁵ -x⁶ -x⁷ - ...). A17899

Expansion of 1/(1 - x - 2·x³ - x⁵). A193147

Number of compositions of 5·n-4 into parts 1 and 5. A369839

Sum C(n-4k,k-1), k=0..floor(n/5). A99562