Properties of the Number 25854

Twenty-Five Thousand Eight Hundred Fifty-Four

Basics

Value: 25853 → 25854 → 25855

Parity: even

Prime: No

Previous Prime: 25849

Next Prime: 25867

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 31 × 139

Divisors: 1, 2, 3, 6, 31, 62, 93, 139, 186, 278

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010011111110

Octal: 62376

Duodecimal: 12B66

Hexadecimal: 64fe

Square: 668429316

Square Root: 160.7917908352289

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 (n+2)X(k+2) binary arrays with each 3X3 subblock nonsingular. A185534

Expansion of 1 / ((1-x)²*(1-x²)*(1-x³)*...*(1-x⁷)). A288342

Constant term of the reduction by x²->x+1 of the polynomial p(n,x) defined at Comments. A193008

a(n) is the index of A384793(n) in A038618. A384794

Grow a binary tree using the following rules. Initially there is a single node labeled 1. At each step we add 1 to all labels less than 3. If a node has label 3 and zero or one descendants we add a new descendant labeled 1. Sequence gives sum of all labels at step n. A123015

Number of (n+2)X4 binary arrays with each 3X3 subblock nonsingular. A185527

Number of (n+2)X5 binary arrays with each 3X3 subblock nonsingular. A185528

Number of nondecreasing strings of numbers x(i=1..7) in -n..n with sum x(i)³ equal to 0. A188281

Number of (n+2)X(5+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A259003

Number of partitions of the n-th nonprime number into a nonprime number of nonprime parts. A344789