Properties of the Number 947

Nine Hundred Forty-Seven

Basics

Value: 946 → 947 → 948

Parity: odd

Prime: Yes

Previous Prime: 941

Next Prime: 953

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 947

Divisors: 1, 947

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110110011

Octal: 1663

Duodecimal: 66B

Hexadecimal: 3b3

Square: 896809

Square Root: 30.773365106858236

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

Central polygonal numbers (the Lazy Caterer's sequence): n(n+1)/2 + 1; or, maximal number of pieces formed when slicing a pancake with n cuts. A124

Balanced primes (of order one): primes which are the average of the previous prime and the following prime. A6562

Primes whose binary representation is also the decimal representation of a prime. A65720

Number of elements in the set {(x,y): 1 <= x,y <= n, gcd(x,y)=1}. A18805

Primes of form 10n+7. A30432

Primes whose base-2 representation is also the base-3 representation of a prime. A235266

Primes whose base-5 representation is also the base-9 representation of a prime. A235482

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

Number of partitions of n in which the sequence of frequencies of the summands is nondecreasing. A100883

Primes of form n² + n + 17. A7635