Properties of the Number -26467

Twenty-Six Thousand Four Hundred Sixty-Seven

Basics

Value: -26468 → -26467 → -26466

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 7 × 19 × 199

Divisors: 1, 7, 19, 133, 199, 1393, 3781, 26467

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110011101100011

Octal: -63543

Duodecimal: -13397

Hexadecimal: -6763

Square: 700502089

Square Root: 162.68681569199146

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) = ∑_{i=1..n, j=1..n, gcd(i,j)=2} (n+1-i)*(n+1-j). A331761

Numbers m such that k = m·23² divides 3^k-1 - 2^k-1. A130058

Pentagonal numbers (A000326) whose digit reversal is a semiprime (A001358). A115709

Pseudoprimes to base 11. A20139

Numbers which are both lucky and pentagonal. A128511

Expansion of (1/x) * Series_Reversion( x / ((1+x)⁴ * (x+(1+x)⁴)) ). A388732

Strong pseudoprimes to base 12. A20238

Pentagonal numbers which are products of three distinct primes. A381650

Strong pseudoprimes to base 27. A20253

(Prime(prime(n))²-1)/24. A92772