Properties of the Number 1156

One Thousand One Hundred Fifty-Six

Basics

Value: 1155 → 1156 → 1157

Parity: even

Prime: No

Previous Prime: 1153

Next Prime: 1163

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 17 ²

Divisors: 1, 2, 4, 17, 34, 68, 289, 578, 1156

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010000100

Octal: 2204

Duodecimal: 804

Hexadecimal: 484

Square: 1336336

Square Root: 34

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

The squares: a(n) = n². A290

Perfect powers: m^k where m > 0 and k >= 2. A1597

Product of divisors of n. A7955

Powerful numbers (A001694) that are not prime powers (A000961). A286708

Even squares: a(n) = (2·n)². A16742

Number of fib00 primes (A095082) in range [2ⁿ,2ⁿ⁺¹]. A95062

Octahedral numbers: a(n) = n*(2·n² + 1)/3. A5900

Squared Fibonacci numbers: a(n) = F(n)² where F = A000045. A7598

Centered pentagonal numbers: (5n²+5n+2)/2; crystal ball sequence for 3.3.3.4.4. planar net. A5891

Perfect powers of nonprimes (m^k where m is a nonprime positive integer and k >= 2). A131605