Properties of the Number 26860

Twenty-Six Thousand Eight Hundred Sixty

Basics

Value: 26859 → 26860 → 26861

Parity: even

Prime: No

Previous Prime: 26849

Next Prime: 26861

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 17 × 79

Divisors: 1, 2, 4, 5, 10, 17, 20, 34, 68, 79

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110100011101100

Octal: 64354

Duodecimal: 13664

Hexadecimal: 68ec

Square: 721459600

Square Root: 163.89020715100705

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) = (11·n + 4)*C(n+3, 3)/4. A55268

Number of proper T₁-hypergraphs with 3 labeled nodes and n hyperedges. A56078

Number of 5-gonal compositions of n into positive parts. A69983

Practical numbers q with q + 2 and q² + 2 both practical. A294225

"DGJ" (bracelet, element, labeled) transform of 1,2,3,4... A32224

One sixteenth of fifth column of triangle A067304. A67308

Number of strings of numbers x(i=1..6) in 0..n with sum i·x(i) equal to n·6. A184706

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,0) = 0ⁿ and T(n,k) = k * ∑_r=0..n binomial(2·n+k,r) * binomial(r,n-r)/(2·n+k) for k > 0. A378292

Number of (n+1) X (1+1) 0..3 arrays colored with the maximum plus the lower median minus the upper median of every 2 X 2 subblock. A236593

Number of (n+2)X(3+2) nonnegative integer arrays with all values the knight distance from the upper left minus as much as 1, with successive minimum path knight move differences either 0 or +1, and any unreachable value zero. A253419