Properties of the Number 26940

Twenty-Six Thousand Nine Hundred Forty

Basics

Value: 26939 → 26940 → 26941

Parity: even

Prime: No

Previous Prime: 26927

Next Prime: 26947

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 5 × 449

Divisors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 110100100111100

Octal: 64474

Duodecimal: 13710

Hexadecimal: 693c

Square: 725763600

Square Root: 164.13409152275466

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

Chebyshev polynomials of the second kind, U(n,x), evaluated at x=15. A97313

Chebyshev polynomial of the second kind U(3,n). A144138

a(n) = n³ - 2·n. A242135

Numbers k such that 2k+1, 4k+1, 6k+1 and 8k+1 are primes. A124409

Structured truncated icosahedral numbers. A100154

Positive integers i for which A112049(i) == 9. A112069

Sum of primes < n². A139562

Denominators of continued fraction convergents to sqrt(224). A41419

Number of ordered triples (w,x,y) with all terms in {1,...,n} and w²+x²+y²>n. A211640

Numbers k such that there is a bigger number m satisfying A000203(k) = A000203(m) = m + k - gcd(m,k). A124140