Properties of the Number 66646

Sixty-Six Thousand Six Hundred Forty-Six

Basics

Value: 66645 → 66646 → 66647

Parity: even

Prime: No

Previous Prime: 66643

Next Prime: 66653

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 47 × 709

Divisors: 1, 2, 47, 94, 709, 1418, 33323, 66646

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010001010110

Octal: 202126

Duodecimal: 3269A

Hexadecimal: 10456

Square: 4441689316

Square Root: 258.1588658171553

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

Decimal concatenations of the 38 quintuples (d1,d2,d3,d4,d5) with elements in {2,4,6} for which there exists a prime p >= 7 such that the differences between the 6 consecutive primes starting with p are (d1,d2,d3,d4,d5). A78870

Numbers having four 6's in base 10. A43516

Moving the rightmost digit of a number to place it furthest to the left adds 18 to the number. A363823

Smallest multiple of n using all digits of (n-1) at least once and no others; or 0 if no such number exists. A83958

Arrange the permutations of {1..m} in lexicographic order. Sequence gives indices of permutations of orders 1 or 2. A66646