Properties of the Number -170185

One Hundred Seventy Thousand One Hundred Eighty-Five

Basics

Value: -170186 → -170185 → -170184

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 101 × 337

Divisors: 1, 5, 101, 337, 505, 1685, 34037, 170185

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -101001100011001001

Octal: -514311

Duodecimal: -825A1

Hexadecimal: -298c9

Square: 28962934225

Square Root: 412.53484701295235

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 different fixed (possibly) disconnected tetrominoes bounded tightly by an n X n square. A163434

Pentagonal numbers for which both the sum of the digits and the product of the digits are pentagonal numbers. A117711

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 39. A31627

Pentagonal numbers for which the sum of the digits is also a pentagonal number. A117709

Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 0100-1100-0111 pattern in any orientation. A146585