Properties of the Number -1266205

Two Hundred Sixty-Six Thousand Two Hundred Five

Basics

Value: -1266206 → -1266205 → -1266204

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 157 × 1613

Divisors: 1, 5, 157, 785, 1613, 8065, 253241, 1266205

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100110101001000011101

Octal: -4651035

Duodecimal: -510911

Hexadecimal: -13521d

Square: 1603275102025

Square Root: 1125.257748251484

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

Moebius inversion of a sequence related to powers of 2. A178738

a(n) = ((-4)^(p-1/4) - 1)/p, where p is the n-th prime congruent to 1 mod 4. A318898

Least number k such that n·k has the fewest possible ones in its binary expansion. A143069

a(n) = floor((1 + 2ⁿ)/(1 + 2·n)). A191633

a(n) = (2^A003558(n) - A332433(n))/(2·n+1), for n >= 0. A329593

Number of distinct self-dual normal bases for GF(2ⁿ) over GF(2). A135488

a(n) = floor((1 + 4ⁿ)/(1 + 4·n)). A191641

Integers of the form (2^k + 1)/(2k + 1). A247094

Least number k such that pk is of minimal Hamming weight, where p is the n-th prime. A278968

a(n) = (2^A195610(n) + 1)/A014657(n), for n >= 1. A337220