Properties of the Number 51152

Fifty-One Thousand One Hundred Fifty-Two

Basics

Value: 51151 → 51152 → 51153

Parity: even

Prime: No

Previous Prime: 51151

Next Prime: 51157

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ⁴ × 23 × 139

Divisors: 1, 2, 4, 8, 16, 23, 46, 92, 139, 184

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100011111010000

Octal: 143720

Duodecimal: 25728

Hexadecimal: c7d0

Square: 2616527104

Square Root: 226.16807909163487

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

The fourth row of the ED2 array A167560. A167561

a(n) = ∑_{-n<i<n, -n<j<n, gcd{i,j}=2} (n-|i|)*(n-|j|). A331772

a(n) = n*(n-1)*(n²-n+4)/6. A103290

Riordan array (((1+x)/(1-x-x²))^m, x·A000108(x)), m=3. A185678

(-1)σ sociable number of order 2: (-1)σ((-1)σ(x))=x, but (-1)σ(x)<>x, where if x=Product p(i)^r(i) then (-1)σ(x)=Product (-1+Sum p(i)^s(i), s(i)=1 to r(i)); (-1)σ(1)=1. A51152