Properties of the Number -812890

Eight Hundred Twelve Thousand Eight Hundred Ninety

Basics

Value: -812891 → -812890 → -812889

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 13 ³ × 37

Divisors: 1, 2, 5, 10, 13, 26, 37, 65, 74, 130

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7989 Try Today's Challenge

Representations

Binary: -11000110011101011010

Octal: -3063532

Duodecimal: -33250A

Hexadecimal: -c675a

Square: 660790152100

Square Root: 901.6041259887845

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

Kaprekar numbers: numbers k such that k = q + r and k² = q·10^m + r, for some m >= 1, q >= 0 and 0 <= r < 10^m. Here q and r must both have the same number of digits. A45913

The full list of 6-Kaprekar numbers. A53397

Square roots of terms in A238237. A290449