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Properties of the Number 66633

Sixty-Six Thousand Six Hundred Thirty-Three

Basics

Value: 66632 → 66633 → 66634

Parity: odd

Prime: No

Previous Prime: 66629

Next Prime: 66643

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 19 × 167

Divisors: 1, 3, 7, 19, 21, 57, 133, 167, 399, 501

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10000010001001001

Octal: 202111

Duodecimal: 32689

Hexadecimal: 10449

Square: 4439956689

Square Root: 258.1336862945245

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

Numbers k such that 28 plus the k-th triangular number is a perfect square. A154153
Denominators of the continued fraction convergents of the decimal concatenation of the prime-indexed primes. A128851
Number of nX7 0..1 arrays with every element unequal to 0, 1 or 3 king-move adjacent elements, with upper left element zero. A303681
Number of walks within N3 (the first octant of Z3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 1), (-1, 0, 1), (1, 0, -1), (1, 1, 0)}. A148751
Triangle T(n,k), n >= 1, 1 <= k <= n, giving number of k's in all partitions of n. A66633
Irregular table read by rows: T(n,k) is the number of k-gons, k>=2, among all distinct circles that can be constructed from the 3 vertices and the equally spaced 3·n points placed on the sides of an equilateral triangle when every pair of the 3 + 3·n points are connected by a circle and where the points lie at the ends of the circle's diameter. A372734
Second differences of sequence A160644. A160648
Shift sequence A162932 twice then subtract from the original sequence. A162934