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Properties of the Number 61040

Sixty-One Thousand Forty

Basics

Value: 61039 → 61040 → 61041

Parity: even

Prime: No

Previous Prime: 61031

Next Prime: 61043

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 4 × 5 × 7 × 109

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110111001110000

Octal: 167160

Duodecimal: 2B3A8

Hexadecimal: ee70

Square: 3725881600

Square Root: 247.06274506691614

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

T(n,k)=Number of nXk 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 4 neighboring 1s. A297694
T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 1,3,2,0,4 for x=0,1,2,3,4. A196636
T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 1,4,2,0,3 for x=0,1,2,3,4. A196641
Triangle read by rows: coefficients of polynomials E(n,x) related to partitions with parts occurring at most thrice. A98494
Number of nX4 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 1,3,2,0,4 for x=0,1,2,3,4. A196632
Number of nX7 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 1,3,2,0,4 for x=0,1,2,3,4. A196635
Number of nX7 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 1,4,2,0,3 for x=0,1,2,3,4. A196640
Number of 3Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 4 neighboring 1s. A297696
Denominator of 1/9 - 1/n2. A61040