Properties of the Number 71148

Seventy-One Thousand One Hundred Forty-Eight

Basics

Value: 71147 → 71148 → 71149

Parity: even

Prime: No

Previous Prime: 71147

Next Prime: 71153

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 7 ² × 11 ²

Divisors: 1, 2, 3, 4, 6, 7, 11, 12, 14, 21

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001010111101100

Octal: 212754

Duodecimal: 35210

Hexadecimal: 115ec

Square: 5062037904

Square Root: 266.73582436560713

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 n such that n*σ(n) is a perfect square. A69070

Nonnegative values·of solutions (x, y) to the Diophantine equation x²+(x+647)² = y². A130013

a(n) = (n+1)(n+2)²*(n+3)²*(n+4)(11n⁴ + 110n³ + 439n² + 820n + 600)/86400. A107965

Least positive integer k such that prime(prime(k)), prime(prime(k·n)), prime(p) and prime(q) form a 4-term arithmetic progression for some pair of primes p and q. A261462

Number of partitions of n such that each part is no more than 4 more than the sum of all smaller parts. A286097

Coordination sequence for 4-dimensional face-centered cubic orthogonal lattice. A8529

Multiplicative order of 2 in Z/mZ with m=A104017(n). A165139

If p and q are twin primes then pq + 1 is always divisible by 3, except for (p,q)=(3,5). Sequence gives values of (pq + 1)/3. A165280

Number of arrangements of 3 nonzero numbers x(i) in -n..n with the sum of trunc(x(i)/x(i+1)) equal to zero. A189546

Partial sums of sequence of odd primes (A065091); a(n) = sum of the first n odd primes. A71148