Properties of the Number 66612

Sixty-Six Thousand Six Hundred Twelve

Basics

Value: 66611 → 66612 → 66613

Parity: even

Prime: No

Previous Prime: 66601

Next Prime: 66617

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 7 × 13 × 61

Divisors: 1, 2, 3, 4, 6, 7, 12, 13, 14, 21

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010000110100

Octal: 202064

Duodecimal: 32670

Hexadecimal: 10434

Square: 4437158544

Square Root: 258.09300649184587

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

Length of the long leg in the unique primitive Pythagorean triple whose inradius is A002378(n) and such that its long leg and its hypotenuse are consecutive natural numbers. A384288

Triangle T(n,k) read by rows of partially ordered sets ("posets") with n unlabeled nodes and k maximal elements (0 <= k <= n). A65066

Positive numbers whose square starts and ends with exactly 44, and no 444. A348831

a(n) is the index of the smallest n-gonal number with exactly n distinct prime factors. A358321

a(n) is the smallest n-gonal number with exactly n distinct prime factors. A358862

Number of nX4 binary arrays without the pattern 1 1 0 diagonally, vertically or horizontally. A188518

Number of primes between nⁿ and (n+1)ⁿ⁺¹. A66612