Properties of the Number -646464

Six Hundred Forty-Six Thousand Four Hundred Sixty-Four

Basics

Value: -646465 → -646464 → -646463

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 ⁶ × 3 × 7 × 13 × 37

Divisors: 1, 2, 3, 4, 6, 7, 8, 12, 13, 14

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -10011101110101000000

Octal: -2356500

Duodecimal: -272140

Hexadecimal: -9dd40

Square: 417915703296

Square Root: 804.029850192143

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

Consider a decimal number of k>=2 digits x = d_k*10^k-1 + d_k-1*10^k-2 + … + d₂*10 + d₁ and the transform T(x)-> (d_k+d_k-1 mod 10)*10^k-1 + (d_k-1+d_k-2 mod 10)*10^k-2 + … + (d₂+d₁ mod 10)*10 + (d₁+d(k) mod 10). Sequence lists the numbers·such that T(x)=0. A243994

Numbers k such that the infinite sequence of digits consisting of the final digit of k^m for m = 2, 3, 4, ... is the same as the sequence of digits obtained by concatenating infinitely many copies of k. A344555

Number of length 4+3 0..n arrays with every four consecutive terms having the maximum of some two terms equal to the minimum of the remaining two terms. A249710