Properties of the Number 5125

Five Thousand One Hundred Twenty-Five

Basics

Value: 5124 → 5125 → 5126

Parity: odd

Prime: No

Previous Prime: 5119

Next Prime: 5147

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 5 ³ × 41

Divisors: 1, 5, 25, 41, 125, 205, 1025, 5125

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010000000101

Octal: 12005

Duodecimal: 2B71

Hexadecimal: 1405

Square: 26265625

Square Root: 71.58910531638176

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

Rhombic matchstick numbers: a(n) = n*(3·n+2). A45944

Numbers that are the sum of 10 positive 10th powers. A4810

Generalized 19-gonal (or enneadecagonal) numbers: m*(17·m - 15)/2 with m = 0, +1, -1, +2, -2, +3, -3, ... A303813

Numbers n that are the hypotenuse of exactly 10 distinct integer-sided right triangles, i.e., n² can be written as a sum of two squares in 10 ways. A97225

Base 10 numbers that are palindromic in bases 2 and 4. A97856

Numbers k such that k | 4^k + 1. A15950

19-gonal (or enneadecagonal) numbers: n(17n-15)/2. A51871

Integers i such that 15·i = A048720bi(23,i). A115774

T(n,k) = Number of (n+2) X (k+2) 0..3 arrays with every consecutive three elements in every row having 2 or 3 distinct values, in every column 1 or 2 distinct values, in every diagonal 2 distinct values, and in every antidiagonal 2 distinct values, and new values 0 upwards introduced in row major order. A252917

a(n) = r·a(ceiling(n/2))+s·a(floor(n/2)) with a(1)=1 and (r,s)=(2,3). A268525