Properties of the Number 26489

Twenty-Six Thousand Four Hundred Eighty-Nine

Basics

Value: 26488 → 26489 → 26490

Parity: odd

Prime: Yes

Previous Prime: 26479

Next Prime: 26497

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 26489

Divisors: 1, 26489

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 110011101111001

Octal: 63571

Duodecimal: 133B5

Hexadecimal: 6779

Square: 701667121

Square Root: 162.75441622272496

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

Numbers k such that (5^k + 2^k)/7 is prime. A82387

Number of relatively prime compositions of n with no 1's. A337450

Centered 28-gonal numbers. A195314

Primes for which the period of the reciprocal equals (p-1)/14. A135073

Partial sums of ∑_k=1..n n/gcd(n,k), or partial sums of ∑_d∣n d*φ(d) (see A057660). A174405

Partial sums of primes, but with a twist. A247657

The prime numbers that are prime-indexed primes and whose digit sum, adjacent digit sum concatenation, and adjacent digit difference concatenation are also primes. A331031

Numbers k such that the continued fraction for sqrt(k) has period 49. A20388

A Chebyshev transform of the Padovan numbers. A100049

Number of permutations of 1..n with the number moved left exceeding the number moved right by 0 or more. A179566