Properties of the Number 61226

Sixty-One Thousand Two Hundred Twenty-Six

Basics

Value: 61225 → 61226 → 61227

Parity: even

Prime: No

Previous Prime: 61223

Next Prime: 61231

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 11 ³ × 23

Divisors: 1, 2, 11, 22, 23, 46, 121, 242, 253, 506

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110111100101010

Octal: 167452

Duodecimal: 2B522

Hexadecimal: ef2a

Square: 3748623076

Square Root: 247.43888134244384

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

Number of (s(0),s(1),...,s(n)) such that every s(i) is a nonnegative integer, s(0) = 1, |s(1) - s(0)| = 1, |s(i) - s(i-1)| <= 1 for i >= 2. Also sum of numbers in row n+1 of the array T defined in A026120. A26135

Number of (w,x,y,z) with all terms in {1,...,n} and w <= x > y <= z. A212246

a(n) = (3·n⁵ + 5·n³)/8. A372583

Numbers k such that the sum of the Carmichael λ functions of the divisors is a proper divisor of k. A131492

Expansion of x*(1 + 3·x + x²)/((1 - x)⁵*(1 + x)⁴). A287143

Triangle T(n,k) read by rows: number of unordered increasing trees on n nodes, with k nodes colored blue and n-k nodes colored red, such that each red node has at least two children. A393523

Binomial convolution of the Floor-Sqrt transform of central binomial coefficients. A192658

Primitive terms of A108569. A346277

a(n) = (1/3)*n⁵ + (1/2)*n⁴ + (1/6)*n³. A373561

Numbers that are coprime to the number of terms in their Zeckendorf representation (A007895). A358978