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Properties of the Number 52125

Fifty-Two Thousand One Hundred Twenty-Five

Basics

Value: 52124 → 52125 → 52126

Parity: odd

Prime: No

Previous Prime: 52121

Next Prime: 52127

Digit Sum: 15

Digital Root: 6

Palindrome: Yes

Factorization: 3 × 5 3 × 139

Divisors: 1, 3, 5, 15, 25, 75, 125, 139, 375, 417

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100101110011101

Octal: 145635

Duodecimal: 261B9

Hexadecimal: cb9d

Square: 2717015625

Square Root: 228.30900113661747

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

Palindromes of the form 4n + 1 where n is also a palindrome. Palindromes arising in A083831. A83832
Number of ways to place 4 points on a triangular grid of side n so that no three of these points are vertices of an equilateral triangle of any orientation. A240441
a(n) = 52·n * [xn] ∏k>=1 1/(1 - 3·xk)1/5. A370735
Palindromes n such that n+(product of digits of n) gives a larger palindrome. A114341
Zeroless numbers n such that n and n - (product of digits of n) are both palindromes. A229761
Numbers k with nonzero digits such that k +/- the product of digits of k are both palindromes. A244547
Palindromes of the form 4n + 1 that are divisible by 5. A256704
Palindromes n with nonzero digits such that n +/- the product of digits of n are both palindromes. A244548
a(n) = ∑k=0..n 2n-k * binomial(n,k) * binomial(3·n+1,k). A388130
a(n) = n/A034684(n). A52125