Properties of the Number -2650

Six Hundred Fifty

Basics

Value: -2651 → -2650 → -2649

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 5 ² × 53

Divisors: 1, 2, 5, 10, 25, 50, 53, 106, 265, 530

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101001011010

Octal: -5132

Duodecimal: -164A

Hexadecimal: -a5a

Square: 7022500

Square Root: 51.478150704935004

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

a(n) = 2·a(n-1) - 3·a(n-2) + 2·a(n-3) with a(0) = 1, a(1) = 5, a(2) = 6. A105577

a(n) = sigma₂(n): sum of squares of divisors of n. A1157

a(n) = n*(n+3). A28552

Indices of primes in A141523. A235862

Numbers n such that BCR(n) = n, where BCR = binary-complement-and-reverse = take one's complement then reverse bit order. A35928

Numbers m that are the hypotenuse of exactly 7 distinct integer-sided right triangles, i.e., m² can be written as a sum of two squares in 7 ways. A97101

a(n) = n²*∏_{distinct primes p dividing n} (1+1/p²). A65958

Numbers m such that m and m+1 are consecutive factorial base Niven numbers (A118363). A328205

Expansion of f(x, -x⁴) / φ(-x²) in powers of·where f(, ) and φ() are Ramanujan θ functions. A122135

Numbers m such that there are precisely 10 groups of order m. A249553