Properties of the Number 66397

Sixty-Six Thousand Three Hundred Ninety-Seven

Basics

Value: 66396 → 66397 → 66398

Parity: odd

Prime: No

Previous Prime: 66383

Next Prime: 66403

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 67 × 991

Divisors: 1, 67, 991, 66397

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001101011101

Octal: 201535

Duodecimal: 32511

Hexadecimal: 1035d

Square: 4408561609

Square Root: 257.6761533398075

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 integer compositions of n whose leaders of weakly increasing runs are identical. A374631

Strong pseudoprimes to base 44. A20270

Strong pseudoprimes to base 46. A20272

Strong pseudoprimes to base 65. A20291

Strong pseudoprimes to base 77. A20303

Reversion of 1 / sqrt(1 - 4·x) (the o.g.f. for the central binomial coefficients A000984) as if it were an e.g.f. A66397