Properties of the Number 66653

Sixty-Six Thousand Six Hundred Fifty-Three

Basics

Value: 66652 → 66653 → 66654

Parity: odd

Prime: Yes

Previous Prime: 66643

Next Prime: 66683

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 66653

Divisors: 1, 66653

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000010001011101

Octal: 202135

Duodecimal: 326A5

Hexadecimal: 1045d

Square: 4442622409

Square Root: 258.17242300447197

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

Beastly primes (version 2): primes containing 666 as a substring. A131645

First prime in n-th group in A077280. A77282

Primes of the form 14 n²-1. A143832

Number of tilings of an 8 X n rectangle using straight (3 X 1) trominoes and 2 X 2 tiles. A219972

Number of tilings of an n X n square using straight (3 X 1) trominoes and 2 X 2 tiles. A219975

One third the number of solid partitions of n with 5 parts. A387998

a[n] is the largest prime before A002280[n] repdigits. A99666

Numbers k such that 4·10^k + 21 is prime. A276047

Number A(n,k) of tilings of a k X n rectangle using straight (3 X 1) trominoes and 2 X 2 tiles; square array A(n,k), n>=0, k>=0, read by antidiagonals. A219967

Beastly primes (version 1): either 666 followed by 0's and a 1 or 7 at the right end or a palindrome with 666 in the center, 0's surrounding these digits, and 1 or 7 at both ends. A186086