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Properties of the Number 26420

Twenty-Six Thousand Four Hundred Twenty

Basics

Value: 26419 → 26420 → 26421

Parity: even

Prime: No

Previous Prime: 26417

Next Prime: 26423

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 2 × 5 × 1321

Divisors: 1, 2, 4, 5, 10, 20, 1321, 2642, 5284, 6605

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 110011100110100

Octal: 63464

Duodecimal: 13358

Hexadecimal: 6734

Square: 698016400

Square Root: 162.5423021862309

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

Difference between larger and smaller terms of n-th amicable pair. A66539
Triangle of coefficients of polynomials defined by Binet form: P(n,x) = ((x + d)n - (x - d)n)/(2·d), where d = sqrt(x+4). A162517
Number of partitions p of n such that (number of even numbers in p) >= 2*(number of odd numbers in p). A241644
Expansion of ∏k>=1 1/(1 - x2·k-1)k*(3·k-1/2). A294669
Difference between the larger and smaller terms of the n-th amicable pair (x,y) given in A259933. A275469
The first Zagreb index of the Aztec diamond AZ(n) (see the Ramanes et al. reference, Theorem 2.1). A292344
Difference between larger and smaller term of n-th ψ-amicable pair, sorted by the smaller members from A323329. A387643
Interprimes which are of the form s·prime, s=20. A75295
a(n) = n*(3·n2 + 6·n + 1). A196507
Numbers n whose sum of anti-divisors is a permutation of their digits. A258786