Properties of the Number 26560

Twenty-Six Thousand Five Hundred Sixty

Basics

Value: 26559 → 26560 → 26561

Parity: even

Prime: No

Previous Prime: 26557

Next Prime: 26561

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ⁶ × 5 × 83

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110011111000000

Octal: 63700

Duodecimal: 13454

Hexadecimal: 67c0

Square: 705433600

Square Root: 162.9723902997069

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

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the lower median of every 2X2 subblock. A236624

Square pyramorphic numbers: integers m such that the sum of the first m squares (A000330) ends in m. A93534

Number of multisets of nonempty strict integer partitions with a total of n parts and total sum of 2n. A360784

Array defined in A064643 read from left to right (cf. A107783). A64644

Array defined in A064643 read in direction in which it was created. A107783

a(n)=φ(n²+1)/n if (n²+1) is composite and φ(n²+1)==0 (mod n). A67926

Number of (n+1) X (1+1) 0..3 arrays colored with the maximum plus the lower median of every 2 X 2 subblock. A236620

Number of (n+1)X(3+1) 0..3 arrays colored with the maximum plus the lower median of every 2X2 subblock. A236622

Terms of A061039 that are multiple of 10, in the order in which they appear. A146762

a(n) = T(2·n, n-2), where T is given by A026552. A26560