Properties of the Number 949

Nine Hundred Forty-Nine

Basics

Value: 948 → 949 → 950

Parity: odd

Prime: No

Previous Prime: 947

Next Prime: 953

Digit Sum: 22

Digital Root: 4

Palindrome: Yes

Factorization: 13 × 73

Divisors: 1, 13, 73, 949

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110110101

Octal: 1665

Duodecimal: 671

Hexadecimal: 3b5

Square: 900601

Square Root: 30.805843601498726

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

Start with 1 and repeatedly reverse the decimal digits and add 4 to get the next term. A117828

Flavius Josephus's sieve: Start with the natural numbers; at the k-th sieving step, remove every (k+1)-st term of the sequence remaining after the (k-1)-st sieving step; iterate. A960

Number of integer partitions of n such that it is possible to choose a different prime factor of each part. A370592

Pseudoprimes to base 3. A5935

Generalized 14-gonal numbers: m*(6·m-5), m = 0,+1,-1,+2,-2,+3,-3,... A195818

Numbers that are palindromic in bases 10 and 15. A29970

14-gonal (or tetradecagonal) numbers: a(n) = n*(6·n-5). A51866

Lunar primes (formerly called dismal primes) (cf. A087062). A87097

a(n) = A005449(n) - 1, where A005449 = second pentagonal numbers. A95794

A000120-perfect numbers. A175522