Properties of the Number 51672

Fifty-One Thousand Six Hundred Seventy-Two

Basics

Value: 51671 → 51672 → 51673

Parity: even

Prime: No

Previous Prime: 51659

Next Prime: 51673

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 2153

Divisors: 1, 2, 3, 4, 6, 8, 12, 24, 2153, 4306

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100100111011000

Octal: 144730

Duodecimal: 25AA0

Hexadecimal: c9d8

Square: 2669995584

Square Root: 227.31475974955958

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

Number of nX2 0..3 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order. A222610

Number of 9 X 9 arrays of squares of integers, symmetric under 90-degree rotation, with all rows summing to n. A156401

T(n,k)=Number of nXk 0..3 arrays with no more than floor(nXk/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order. A222616

Number of isoscent sequences of length n with exactly four ascents. A243230

Triangle of up-down sums of k-th powers: a(n,k)=sum(i^k,i=1..n)+sum((n-i)^k,i=1..n-1), n,k>0. A51672