Properties of the Number 10865

Ten Thousand Eight Hundred Sixty-Five

Basics

Value: 10864 → 10865 → 10866

Parity: odd

Prime: No

Previous Prime: 10861

Next Prime: 10867

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 41 × 53

Divisors: 1, 5, 41, 53, 205, 265, 2173, 10865

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101001110001

Octal: 25161

Duodecimal: 6355

Hexadecimal: 2a71

Square: 118048225

Square Root: 104.23531071570709

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 nondecreasing -k..k vectors of length n whose dot product with some nondecreasing -k..k vector equals n. A226410

a(n) = n*(13·n-3)/2. A186030

Numbers n that are the product of three distinct odd primes and x² + y² = n has integer solutions. A264498

Number T(n,k) of parts in all proper k-times partitions of n into distinct parts; triangle T(n,k), n >= 1, 0 <= k <= max(0,n-2), read by rows. A327632

Numbers k such that the continued fraction for sqrt(k) has period 3. A13643

a(n) = 4·a(n-1) - a(n-2) - 2, with a(0)=1, a(1)=2. A72110

Values of hypotenuse of primitive Pythagorean triples which can have four different shapes (that is, four different sets of "legs"). A159781

Numbers n not divisible by 2 or 3 such that k^k == k+1 (mod n) has no nonzero solutions. A191834

Hypotenuses of primitive Pythagorean triples in A195544 and A195545. A195546

a(n) is the minimal odd odious k>1, such that kⁱ, i=2,...,n, all are evil, and a(n)=0, if there is no such k. A230498