Properties of the Number -165025

One Hundred Sixty-Five Thousand Twenty-Five

Basics

Value: -165026 → -165025 → -165024

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 ² × 7 × 23 × 41

Divisors: 1, 5, 7, 23, 25, 35, 41, 115, 161, 175

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -101000010010100001

Octal: -502241

Duodecimal: -7B601

Hexadecimal: -284a1

Square: 27233250625

Square Root: 406.23269193899205

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

Triangular numbers T from A000217 such that (4·T+1)/13 is prime. A208294

Right part of the square of the n-th Kaprekar number. A194219

Triangular numbers whose sum of squared digits is also triangular. A94890

Lexicographically earliest sequence of nonnegative integers such that a(1)=3 and the sequence is p-periodic mod p for any p > 0. A284148

E.g.f.: ((1+x)/(1-x))^1/3*((1+x+x²)/(1-x+x²))^1/6. A123014