Properties of the Number -40986

Forty Thousand Nine Hundred Eighty-Six

Basics

Value: -40987 → -40986 → -40985

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ⁴ × 11 × 23

Divisors: 1, 2, 3, 6, 9, 11, 18, 22, 23, 27

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1010000000011010

Octal: -120032

Duodecimal: -1B876

Hexadecimal: -a01a

Square: 1679852196

Square Root: 202.44999382563586

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

Integers that are Rhonda numbers to base 30. A255736

a(n) = n*(n+1)*(n² + 2)/6. A71239

25-gonal pyramidal numbers: a(n) = n*(n+1)*(23·n-20)/6. A256645

Number of ways to tile an n X 1 strip with 1 X 1 squares and 2 X 1 dominoes with the restriction that no three consecutive tiles are of the same type. A137200

Nonnegative walks of length n on the x-axis starting at the origin using steps {1,-1} and visiting no point more than twice. A212584

Number of ways to write n as an ordered sum of nine powers of 2. A342252

a(n) = n! * (1 + ∑_k=0..n (-1)^k * binomial(k+3,4) / k!). A368768

a(n) = 100·n² - 151·n + 57. A157626

Numbers k such that k | sigma₃(k) - φ(k)³. A55697

Number of permutations of length n which avoid the patterns 1324, 2431, 4123. A116830