Properties of the Number 66289

Sixty-Six Thousand Two Hundred Eighty-Nine

Basics

Value: 66288 → 66289 → 66290

Parity: odd

Prime: No

Previous Prime: 66271

Next Prime: 66293

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 151 × 439

Divisors: 1, 151, 439, 66289

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001011110001

Octal: 201361

Duodecimal: 32441

Hexadecimal: 102f1

Square: 4394231521

Square Root: 257.4665026755908

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

Triangle read by rows: T(n,k) is the number of embeddings on the sphere of 2-connected planar graphs with n nodes and k faces up to orientation preserving isomorphisms, n >= 3, k=2..2·n-4. A342059

Number of unlabeled connected loopless multigraphs with n nodes of degree 5 or less. A334547

Array read by antidiagonals: T(n,k) is the number of unlabeled connected loopless multigraphs with n nodes of degree k or less. A334546

Numbers k such that k divides DivisorSigma(2·j-1, k) for all j; i.e., all odd-power-sums of divisors of k are divisible by k. A66289