Properties of the Number 65260

Sixty-Five Thousand Two Hundred Sixty

Basics

Value: 65259 → 65260 → 65261

Parity: even

Prime: No

Previous Prime: 65257

Next Prime: 65267

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 5 × 13 × 251

Divisors: 1, 2, 4, 5, 10, 13, 20, 26, 52, 65

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111111011101100

Octal: 177354

Duodecimal: 31924

Hexadecimal: feec

Square: 4258867600

Square Root: 255.46036874630866

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

Index of first occurrence of exactly n consecutive twos in a row in the decimal expansion of π. A96756

a(n) is the starting position of the first occurrence of a string of n 2's in the decimal expansion of π. A50281

Triangle read by rows: T(n, k) = (2^n-k + 2^k)*A008292(n+1, k+1). A154693

Starting positions of strings of four 2's in the decimal expansion of π. A83607

Starting positions of strings of five 2's in the decimal expansion of π. A83608

a(n)/2ⁿ is the expected value of the maximum of the number of heads and the number of tails when n fair coins are tossed. A230137

Consider 3 X 3 X 3 Rubik cube, but only allow the <U, R> group to act; sequence gives number of positions that are exactly n moves from the start. A80628

A057115 conjugated with A059893, inverse of A065259. A65260