Properties of the Number 60686

Sixty Thousand Six Hundred Eighty-Six

Basics

Value: 60685 → 60686 → 60687

Parity: even

Prime: No

Previous Prime: 60679

Next Prime: 60689

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 19 × 1597

Divisors: 1, 2, 19, 38, 1597, 3194, 30343, 60686

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110110100001110

Octal: 166416

Duodecimal: 2B152

Hexadecimal: ed0e

Square: 3682790596

Square Root: 246.3452861331022

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) = 2·n*Fibonacci(n-2) + (-1)ⁿ + 1. A309874

G.f. satisfies: A(x)² = A( x²/(1 - 4·x + 2·x²) ). A274484

Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k UDL's (n >= 0; 0 <= k <= floor((n+1)/2)). A128728

Number of skew Dyck paths of semilength n with no UDL's. A128729

Number of n-length words w over a 7-ary alphabet such that w is empty or a prefix z concatenated with letter a_i and i=1 or 0 < #(z,a_i-1) >= #(z,a_i), where #(z,a_i) counts the occurrences of the i-th letter in z. A240613

Triangle read by rows: T(n, k) = C(n, k)*∑_j=0..n C(n, k-j)*C(n+j, j)/C(2·j, j). A339000

Duplicate of A004214. A60686