Properties of the Number 66123

Sixty-Six Thousand One Hundred Twenty-Three

Basics

Value: 66122 → 66123 → 66124

Parity: odd

Prime: No

Previous Prime: 66109

Next Prime: 66137

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 31 × 79

Divisors: 1, 3, 9, 27, 31, 79, 93, 237, 279, 711

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001001001011

Octal: 201113

Duodecimal: 32323

Hexadecimal: 1024b

Square: 4372251129

Square Root: 257.1439285691964

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 idempotent 3X3 -n..n matrices of rank 1. A221312

Indices of the start of 10 successive distinct digits in the decimal expansion of e (2.718281828...). A258166

Numbers k such that 197·2^k+1 is prime. A32475

a(n) = 279841n² - 165048n + 24335. A156843

Numbers that in base 2 need two 'Reverse and Add' steps to reach a palindrome. A66123