Properties of the Number 26687

Twenty-Six Thousand Six Hundred Eighty-Seven

Basics

Value: 26686 → 26687 → 26688

Parity: odd

Prime: Yes

Previous Prime: 26683

Next Prime: 26693

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 26687

Divisors: 1, 26687

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110100000111111

Octal: 64077

Duodecimal: 1353B

Hexadecimal: 683f

Square: 712195969

Square Root: 163.36156218645806

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

Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[6, 6,2]; short d-string notation of pattern = [662]. A78857

Total number of n-digit positive integers with multiplicative digital root value 8. A263481

Number of integer partitions of n such that the least and greatest parts are both even or both odd. A391225

a(n) is such that the a(n)-th composite number is (n-th prime)². A120389

a(n) = T(n,2n-5), T given by A027023. A27029

Primes p such that p plus the cube of sum of digits of p is a perfect square. A259418

Primes p such that A276173(p) = p. A276174

Values of abs(P(x)), with P(x) = (1/72)*x⁶ + (1/24)*x⁵ - (1583/72)*x⁴ - (3161/24)*x³ + (200807/36)*x² + (97973/3)*x - 11351, for -45 <= x <= 12, sorted by size. All values in the given range are prime. A330364

Primes having only {2, 6, 7, 8} as digits. A386165

Primes p from A031924 such that A052180(primepi(p)) = 13. A52233