Properties of the Number 71471

Seventy-One Thousand Four Hundred Seventy-One

Basics

Value: 71470 → 71471 → 71472

Parity: odd

Prime: Yes

Previous Prime: 71453

Next Prime: 71473

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 71471

Divisors: 1, 71471

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001011100101111

Octal: 213457

Duodecimal: 3543B

Hexadecimal: 1172f

Square: 5108103841

Square Root: 267.3406067173485

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 p such that A001177(p) = (p-1)/7. A308800

Largest prime factor of n! + k where k is the least positive integer such that n! + k is a square. A83397

a(n) = 137·n² - 4043·n + 27277. A267706

Sprague-Grundy values for octal games .152 and .1521. A71471

a(n) is the smallest prime p such that p has at least one digit greater than 1 and all the n numbers ds(p), ds(ds(p)), ..., ds(ds(...(ds(p))...)) are primes. The function ds is defined in the comment lines. A244441