Properties of the Number 67801

Sixty-Seven Thousand Eight Hundred One

Basics

Value: 67800 → 67801 → 67802

Parity: odd

Prime: Yes

Previous Prime: 67789

Next Prime: 67807

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 67801

Divisors: 1, 67801

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000100011011001

Octal: 204331

Duodecimal: 332A1

Hexadecimal: 108d9

Square: 4596975601

Square Root: 260.3862515571819

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

Smallest prime factor of n! + 2n - 1. A139466

a(n) = ∑_{k=0..floor(n/6)} C(n-3k,3k) * 2^k. A100135

Primes of the form 1+2·n+3·n². A122430

Maxima of the numerators (and also of the denominators) of row n in the Schinzel-Sierpinski tree of fractions A295511. A295509

Numbers m such that bigomega(m)=2*ω(m). A67801

Primes p such that the sum of p and the average of the primes immediately before and after p is prime. A338270

Numbers n such that the product of n and the sum of the reciprocal of their anti-divisors is an integer. A272890