Properties of the Number 52121

Fifty-Two Thousand One Hundred Twenty-One

Basics

Value: 52120 → 52121 → 52122

Parity: odd

Prime: Yes

Previous Prime: 52103

Next Prime: 52127

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 52121

Divisors: 1, 52121

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100101110011001

Octal: 145631

Duodecimal: 261B5

Hexadecimal: cb99

Square: 2716598641

Square Root: 228.3002409109548

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

Prime number spiral (clockwise, Northwest spoke). A53999

One of the four successive approximations up to 5ⁿ for the 5-adic integer 6^1/4. This is the 1 (mod 5) case (except for n = 0). A325484

Primes having only {1, 2, 5} as digits. A385773

Prime(p²) where p = prime(n). A96327

Primes formed by an m-digit prime concatenated with its last (m-1) digits, for m > 1. A252667

a(n) = a(n-3) + a(n-2) + gcd(a(n-2), a(n-1)) with a(1) = a(2) = a(3) = 1. A370202

Triangle of coefficients of polynomials enumerating trees with n labeled nodes by inversions. A52121

Number of 4Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 4Xn array. A219917

Number of (n+1)X(3+1) 0..1 arrays with no element having a strict majority of its horizontal, diagonal and antidiagonal neighbors equal to one. A231759