Properties of the Number -2757

Seven Hundred Fifty-Seven

Basics

Value: -2758 → -2757 → -2756

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 919

Divisors: 1, 3, 919, 2757

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101011000101

Octal: -5305

Duodecimal: -1719

Hexadecimal: -ac5

Square: 7601049

Square Root: 52.507142371300304

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

Dirichlet g.f.: ζ(s-1) / (ζ(s) * ζ(s-2)). A328502

a(n) = a(n-1) + a(n-2) + a(n-3), a(0)=3, a(1)=1, a(2)=3. A1644

a(n) = 4·n² - 6·n + 3. A54569

Numbers k giving rise to prime quadruples (30k+11, 30k+13, 30k+17, 30k+19). A14561

Smallest palindromic number of 3 digits in two bases differing by n. A216840

Add/multiply sequence, see example. A93361

a(0) = 1 by convention; for n>0, a(n) is the number of points in the n-th figure shown in A255011 (meaning the figure with 4n points on the perimeter). A331449

Triangle read by rows: T(n,m) (n >= m >= 1) = number of vertices formed by drawing the lines connecting any two of the 2*(m+n) perimeter points of an m X n grid of squares. A331453

a(1) = 10; a(n) is smallest number > a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime. A74346

Numbers k such that p=k²+2 and p+2 are primes. A86381