Properties of the Number 61741

Sixty-One Thousand Seven Hundred Forty-One

Basics

Value: 61740 → 61741 → 61742

Parity: odd

Prime: No

Previous Prime: 61729

Next Prime: 61751

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 29 × 2129

Divisors: 1, 29, 2129, 61741

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1111000100101101

Octal: 170455

Duodecimal: 2B891

Hexadecimal: f12d

Square: 3811951081

Square Root: 248.47736315407084

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

a(n) = 5ⁿ - 4ⁿ. A5060

Nexus numbers (n + 1)⁷ - n⁷. A22523

4-Stirling numbers of the second kind. A143496

Triangular array read by rows, T(n,k) is the number of functions from {1,2,...,n} into {1,2,...,n} with maximum value of k. A199656

Difference of two positive 7th powers. A181126

Monotonic ordering of nonnegative differences 5ⁱ-4^j, for 40>= i>=0, j>=0. A192162

a(n) = a(n-1) + 20·a(n-2), n >= 2; a(0)=1, a(1)=41. A320468

Numbers of squares formed by this procedure on n-th step: Step 1, draw a unit square. Step n, draw a unit square with center in every intersection of lines of the figure in step n-1. A336288

Triangle read by rows: T(n,k) = ∑_j=0..k (-1)^k-j * binomial(k,j) * (4+j)ⁿ. A391633

Expansion of d/dx log(1/(1-x/sqrt(1-4·x²))). A189053