Properties of the Number -19835

Nineteen Thousand Eight Hundred Thirty-Five

Basics

Value: -19836 → -19835 → -19834

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 × 3967

Divisors: 1, 5, 3967, 19835

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100110101111011

Octal: -46573

Duodecimal: -B58B

Hexadecimal: -4d7b

Square: 393427225

Square Root: 140.83678496756448

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

Expansion of x*(1+2·x)/(1+x+x²-2·x³). A103749

Number of ways to write n as an ordered sum of 5 prime powers (including 1). A341134

a(n) = ∑_k=1..n k * τ(k)², where τ is A000005. A320896

Triangle read by rows: T(n,k) is number of peakless Motzkin paths of length n and having k uhh...hd's starting at level 0, where u=(1,1), h=(1,0) and d=(1,-1) (can be easily expressed using RNA secondary structure terminology). A98071

Number of 3Xn arrays containing n copies of 0..3-1 with no element 1 greater than its west, northeast or northwest neighbor modulo 3 and the upper left element equal to 0. A266995

Numbers of the form ab such that φ(ab) = a·b - 1 where ab is the concatenation of a and b. A336192

Numbers k such that 8·10^k + 5·R_k + 2 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A103085

Numbers n such that 103·2ⁿ-1 is prime. A50577