Properties of the Number -5679

Six Hundred Seventy-Nine

Basics

Value: -5680 → -5679 → -5678

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 631

Divisors: 1, 3, 9, 631, 1893, 5679

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1011000101111

Octal: -13057

Duodecimal: -3353

Hexadecimal: -162f

Square: 32251041

Square Root: 75.35914012248281

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

Fifth subdiagonal in array of n-gonal numbers A081422. A81436

a(n) = ∑_i=0..n ∑_j=0..n (-1)^i+j * (i+j)!/(i!j!). A120305

Expansion of ∏_{r = 1 or not a perfect power} 1/(1 - x^r). A305630

Number of polyforms with n cells on the faces of a pentagonal icositetrahedron up to rotation. A383808

Sum of divisors of twice square numbers. A65765

Number of compositions such that the number of parts is divisible by the first part. A168655

a(n) is the number of positive integers <= 10ⁿ that are divisible by no prime exceeding 3. A100752

a(n) = 153·n + 18. A139618

Expansion of (1+x³)/((1-x)²*(1-x³)²). A92353

Start with 1015 and repeatedly reverse the digits and add 4 to get the next term. A117807