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Properties of the Number 23966

Twenty-Three Thousand Nine Hundred Sixty-Six

Basics

Value: 23965 → 23966 → 23967

Parity: even

Prime: No

Previous Prime: 23957

Next Prime: 23971

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 23 × 521

Divisors: 1, 2, 23, 46, 521, 1042, 11983, 23966

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101110110011110

Octal: 56636

Duodecimal: 11A52

Hexadecimal: 5d9e

Square: 574369156

Square Root: 154.8095604282888

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

G.f.: 1/(1 - x*(1-x6)/(1 - x2*(1-x7)/(1 - x3*(1-x8)/(1 - x4*(1-x9)/(1 - x5*(1-x10)/(1 - ...)))))), a continued fraction. A227375
Number of simple unlabeled graphs on n nodes with connected components that are trees or cycles. A215978
Number T(n,k) of tilings of a 5 X n rectangle with pentominoes of any shape and exactly k pentominoes of shape W; triangle T(n,k), n>=0, 0<=k<=max(0,floor((n-2)/2)*2) read by rows. A247710
T(n,k)=Number of (n+3)X(k+3) 0..1 arrays with each row and column not divisible by 9, read as a binary number with top and left being the most significant bits. A263156
Number of binary strings of length n with equal numbers of 00000 and 00001 substrings. A164178
Number of 1's in n-th term of A007651. A22466
Number of tilings of a 5 X n rectangle using n pentominoes of any but the W shape. A247774
Number of partitions of n satisfying (cn(0,5) = 0 and cn(1,5) = cn(4,5)). A36818
Number of (n+3)X(1+3) 0..1 arrays with each row and column not divisible by 9, read as a binary number with top and left being the most significant bits. A263153
A000168(n+1) - A000139(n). A359126