Properties of the Number 1181

One Thousand One Hundred Eighty-One

Basics

Value: 1180 → 1181 → 1182

Parity: odd

Prime: Yes

Previous Prime: 1171

Next Prime: 1187

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 1181

Divisors: 1, 1181

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10010011101

Octal: 2235

Duodecimal: 825

Hexadecimal: 49d

Square: 1394761

Square Root: 34.36568055487916

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

Numbers k such that 8·10^k - 49 is prime. A271269

Number of necklaces of sets of beads containing a total of n beads. A8965

Emirps (primes whose reversal is a different prime). A6567

Primes of the form 10·n+1. A30430

Primes of the form 2x² + 13y². A107132

Primes whose decimal representation is a valid number in base 9 and interpreted as such is again a prime. A235395

Primes followed by a gap of 6, i.e., next prime is p + 6. A31924

Primes with 7 as smallest primitive root. A1126

Number of compositions of n such that each part is adjacent to an equal part. A114901

Primes of the form 2·k² + 29. A7641