Properties of the Number -1830985

Eight Hundred Thirty Thousand Nine Hundred Eighty-Five

Basics

Value: -1830986 → -1830985 → -1830984

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 5 × 13 × 17 × 1657

Divisors: 1, 5, 13, 17, 65, 85, 221, 1105, 1657, 8285

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110111111000001001001

Octal: -6770111

Duodecimal: -743721

Hexadecimal: -1bf049

Square: 3352506070225

Square Root: 1353.1389433461738

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

Number of solenoidal flows (flow in = flow out) in a 3 X 3 square array with integer velocities -n .. n. A68722

Fermat pseudoprimes to base 2 that are pentagonal. A293623