Properties of the Number 68239

Sixty-Eight Thousand Two Hundred Thirty-Nine

Basics

Value: 68238 → 68239 → 68240

Parity: odd

Prime: Yes

Previous Prime: 68227

Next Prime: 68261

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 68239

Divisors: 1, 68239

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000101010001111

Octal: 205217

Duodecimal: 335A7

Hexadecimal: 10a8f

Square: 4656561121

Square Root: 261.22595583134535

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

a(n) = G_n(5), where G_n(k) is the Goodstein function defined in A266201. A266204

Fifth term of weak prime sextet: p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m). A54832

Sixth term of weak prime septet: p(m-4)-p(m-5) < p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m). A54839

Sixth term of weak prime sextet: p(m-4)-p(m-5) < p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1). A54833

Expansion of 1/(1 - x/(1 - 9·x²)^2/3). A373543

Smallest of four consecutive primes whose average is a triangular number. A226155

First of a sequence of exactly n consecutive primes whose squares have the same last digit. A366310

1/2 the number of colorings of a 3 X 3 square array with n colors. A68239

Smallest Wieferich prime (> sqrt(n)) in base n. A247072