Properties of the Number 71887

Seventy-One Thousand Eight Hundred Eighty-Seven

Basics

Value: 71886 → 71887 → 71888

Parity: odd

Prime: Yes

Previous Prime: 71881

Next Prime: 71899

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 71887

Divisors: 1, 71887

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001100011001111

Octal: 214317

Duodecimal: 35727

Hexadecimal: 118cf

Square: 5167740769

Square Root: 268.1175115504394

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

Primes having only {1, 7, 8} as digits. A260892

Primes p such that p+12, p+1234 and p+123456 are also prime. A236304

Primes p of the form 4m+3 for which there are exactly as many primitive roots modulo p in the interval [0,p/2] as in the interval [p/2,p]. A172490

a(n) is the least number of sides of a regular inscribed k-gon whose perimeter yields π to within 1/10ⁿ. A259441

Smallest prime in kx³+x+2 is prime. A114366

Conjectured values of n whose trajectory under map x -> A002487(x)*A002487(x+1) does not go into a cycle. A71887