Properties of the Number 65331

Sixty-Five Thousand Three Hundred Thirty-One

Basics

Value: 65330 → 65331 → 65332

Parity: odd

Prime: No

Previous Prime: 65327

Next Prime: 65353

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 7 × 17 × 61

Divisors: 1, 3, 7, 9, 17, 21, 51, 61, 63, 119

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111111100110011

Octal: 177463

Duodecimal: 31983

Hexadecimal: ff33

Square: 4268139561

Square Root: 255.59929577367774

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

Scaled array A078740 ((3,2)-Stirling2). A90452

Triangle read by rows: T(n,k) is the number of sets of noncrossing paths of size k whose nodes are a subset of n nodes arranged in a circle with one node paths allowed, 0 <= k <= n. A390897

Base-10 numbers k such that k can be written as k = A·B and R(k) = R(A) * R(B) in six or more bases, from base 2 to base 10, and where R(k), the digit reversal of k, is read as a number in the same base. A346219

Numbers n such that 6·10ⁿ + 8·R_n + 1 is prime, where R_n = 11...1 is the repunit (A002275) of length n. A103047

Largest 3-smooth divisor of n. A65331

Number of symmetric 5 X 5 matrices of nonnegative integers with every row and column adding to n. A53494