Properties of the Number -26407

Twenty-Six Thousand Four Hundred Seven

Basics

Value: -26408 → -26407 → -26406

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 26407

Divisors: 1, 26407

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110011100100111

Octal: -63447

Duodecimal: -13347

Hexadecimal: -6727

Square: 697329649

Square Root: 162.50230767592194

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

Primes p such that p-1 divides 2^p-2. A69051

Primes of the form p² - p + 1 where p is prime. A74268

Primes of the form n² + n + 1 where n is nonprime. A185632

The number of n-almost primes less than or equal to eⁿ, starting with a(0)=1. A116432

Noncomposite numbers in the southwestern ray of the Ulam spiral as oriented on the March 1964 cover of Scientific American. A168026

Primes of the form 1 + n + n² + n³ + ... + n^k, n > 1, k > 1 where n is not prime. A285017

p²-p+1 central polygonal numbers with prime indices A002061(prime(n)). A119959

Primes p such that x⁹ = 2 has a solution mod p, but x^9² = 2 has no solution mod p. A70185

Primes of form x² - φ(x) in increasing order. A258435

Primes in A258774. A258776