Properties of the Number 80221

Eighty Thousand Two Hundred Twenty-One

Basics

Value: 80220 → 80221 → 80222

Parity: odd

Prime: Yes

Previous Prime: 80209

Next Prime: 80231

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 80221

Divisors: 1, 80221

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011100101011101

Octal: 234535

Duodecimal: 3A511

Hexadecimal: 1395d

Square: 6435408841

Square Root: 283.2331195323033

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 subsets of {1,..,n} of cardinality >= 2 such that the elements of each counted subset are pairwise coprime. A276187

Beginning with 7, least prime such that concatenation of first n terms and its digit reversal both are primes. A379761

Largest of six consecutive primes the sum of the digits of each of which is prime. A106720

Number of 0..n arrays x(0..3) of 4 elements with nondecreasing average value. A200764

n is Harshad (divisible by the sum of its digits) in a(n) bases from 1 to n. A80221