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Properties of the Number 65171

Sixty-Five Thousand One Hundred Seventy-One

Basics

Value: 65170 → 65171 → 65172

Parity: odd

Prime: Yes

Previous Prime: 65167

Next Prime: 65173

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 65171

Divisors: 1, 65171

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111111010010011

Octal: 177223

Duodecimal: 3186B

Hexadecimal: fe93

Square: 4247259241

Square Root: 255.28611399760857

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

Triangle T(n,k) by rows: T(n, k) = (n-k+1)*T(n-1, k-1) + k·T(n-1, k) + T(n-2, k-1) with T(n, 1) = T(n, n) = 1. A144438
Lesser of twin primes for which φ(p-1) < φ(p+1). A286715
Lower twin primes with lower twin prime index. A88460
Lexicographically earliest permutation of the primes such that successive absolute differences yield a permutation of all nonprime numbers. A203985
Primes whose position in the Wythoff array is immediately followed by a prime both in the next column and the next row. A352537
a(n) equals the smallest Sophie Germain prime q such that pip,2p+1(q,10,(1,3)) - pip,2p+1(q,10,(3,1)) = n, where pip,2p+1(q,10,(b,c)) equals the number of Sophie Germain primes A005384(i) such A005384(i) <= q and (A005384(i),A005384(i+1)) == (b,c) (mod 10). A333084
Permutation of Z, folded to N, corresponding to the site swap pattern ...26120123456... which ascends infinitely after t=0. A65171