Properties of the Number -7449

Four Hundred Forty-Nine

Basics

Value: -7450 → -7449 → -7448

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 13 × 191

Divisors: 1, 3, 13, 39, 191, 573, 2483, 7449

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1110100011001

Octal: -16431

Duodecimal: -4389

Hexadecimal: -1d19

Square: 55487601

Square Root: 86.3075894692929

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

12-gonal (or dodecagonal) numbers: a(n) = n*(5·n-4). A51624

a(n) = (2·n-1)*(n² -n +2)/2. A63488

Pseudoprimes to base 5. A5936

a(n)=A089551(n)/2. A89558

Euler pseudoprimes to base 5: composite integers such that abs(5^{(n - 1}/2)) == 1 mod n. A262052

Partial sums of A160239. A245542

Base-5 Euler-Jacobi pseudoprimes: odd composite k coprime to 5 such that 5^(k-1/2) == (5/k) (mod n), where (5/k) is the Jacobi symbol (or Kronecker symbol). A375914

Composite numbers k == 1, 9 (mod 10) such that 5^(k-1/2) == 1 (mod k). A375915

a(n) = ∑_{k=0..floor(n/3)} binomial(2·n-k+1,n-3·k). A371773

Starting numbers for which the RATS sequence has eventual period 14. A114615