Properties of the Number 42261

Forty-Two Thousand Two Hundred Sixty-One

Basics

Value: 42260 → 42261 → 42262

Parity: odd

Prime: No

Previous Prime: 42257

Next Prime: 42281

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 14087

Divisors: 1, 3, 14087, 42261

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010100010101

Octal: 122425

Duodecimal: 20559

Hexadecimal: a515

Square: 1785992121

Square Root: 205.57480390359126

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..2 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..2 introduced in row major order. A241370

Indices of primes in sequence defined by A(0) = 11, A(n) = 10·A(n-1) + 21 for n > 0. A56244

Number of 2 X n 0..2 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..2 introduced in row major order. A241371

Denominators of continued fraction convergents to sqrt(656). A42261