Properties of the Number 19265

Nineteen Thousand Two Hundred Sixty-Five

Basics

Value: 19264 → 19265 → 19266

Parity: odd

Prime: No

Previous Prime: 19259

Next Prime: 19267

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 3853

Divisors: 1, 5, 3853, 19265

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100101101000001

Octal: 45501

Duodecimal: B195

Hexadecimal: 4b41

Square: 371140225

Square Root: 138.7984149765407

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..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 4,3,1,0,2 for x=0,1,2,3,4. A196904

Denominators of continued fraction convergents to sqrt(725). A42397

Indices of the 7-gonal numbers that are the sum of 2 consecutive 7-gonal numbers. A133327

Cumulative sum of primes p such that 2^p - 1 is a Mersenne prime. A109472

Unlabeled super-Catalan numbers: patterns of nonintersecting chords joining unlabeled points on a flippable circle. A183758

Number of n X 3 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 4,3,1,0,2 for x=0,1,2,3,4. A196899

Number of (1+1) X (n+1) arrays of permutations of 0..n·2+1 with each element having directed index change 1,0 0,-1 1,2 or -1,1. A264584

a(n) = ∑_k=1..n ceiling(k⁴/n). A14816

Number of n X n binary arrays with all ones connected only in a 1101-1111 pattern in any orientation. A146863

Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1101-1111 pattern in any orientation. A146865