ℕ atory
Play Now

Properties of the Number -3261

Two Hundred Sixty-One

Basics

Value: -3262 → -3261 → -3260

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 1087

Divisors: 1, 3, 1087, 3261

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -110010111101

Octal: -6275

Duodecimal: -1A79

Hexadecimal: -cbd

Square: 10634121

Square Root: 57.105166141076936

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

Fundamental discriminants of real quadratic number fields with class number 3. A94612
Indices k such that A020509(k)=φ[k](-10) is prime, where φ is a cyclotomic polynomial. A138920
Numbers k giving rise to prime quadruples (30k+11, 30k+13, 30k+17, 30k+19). A14561
a(1) = 8; a(n) is smallest number >= a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime. A46258
Positive numbers whose product of digits is three times their sum. A62035
a(n) = (a(n-1)+a(n-2))/7k, where 7k is the highest power of 7 dividing a(n-1)+a(n-2). A78414
Numbers k such that A136676(k) is prime. A136685
Positions of 4 in A274640. A275189
G.f. 1/(1-sum(n=1,N,xn*(3·n-1/2))). A181324
G.f.: ∑k>=1 xk/(1-xk) * ∏k>=1 (1+xk). A305082