Properties of the Number 65208

Sixty-Five Thousand Two Hundred Eight

Basics

Value: 65207 → 65208 → 65209

Parity: even

Prime: No

Previous Prime: 65203

Next Prime: 65213

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 11 × 13 × 19

Divisors: 1, 2, 3, 4, 6, 8, 11, 12, 13, 19

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111111010111000

Octal: 177270

Duodecimal: 318A0

Hexadecimal: feb8

Square: 4252083264

Square Root: 255.35857142457544

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) = n*(n + 7)*(n + 14)*(n + 21)*(n + 28)/120. A264449

Partial sums of A051946. A50484

Successive maxima in sequence A007365. A65933

Sum of integers generated by n-1 substitutions, starting with 1, k -> k+1, k-1, .., 1. A93951

Maximum value in the distribution by first value of Prufer code of noncrossing spanning trees on a circle of n+2 points; perhaps the number whose Prufer code starts with 2. A56096

a(n) = n*(n²-1)*(3·n+2). A115056

Primitive elements of A096490. A118671

Array A(n, k) = ∏_j=1..n ( j - (1+j)*(k+1) + (k+1)^j+1 ) with A(n, 0) = n!, read by antidiagonals. A156579

a(n) = n*(945·n⁴ - 3150·n³ + 4095·n² - 2370·n + 496). A272358

Smallest c which can be split into positive parts a and b with a+b=c, such that the divisors of a,b,c cover all numbers up to n. A346971