Properties of the Number 16864

Sixteen Thousand Eight Hundred Sixty-Four

Basics

Value: 16863 → 16864 → 16865

Parity: even

Prime: No

Previous Prime: 16843

Next Prime: 16871

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ⁵ × 17 × 31

Divisors: 1, 2, 4, 8, 16, 17, 31, 32, 34, 62

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000111100000

Octal: 40740

Duodecimal: 9914

Hexadecimal: 41e0

Square: 284394496

Square Root: 129.8614646459834

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

Sum of the smallest parts of all compositions of n. A97939

a(n) = n*(n - 1)*(n + 2)/2. A77414

Number of triangles in an n X n unit grid that have minimal possible area (of 1/2). A88658

a(n) = ∑_d∣n 7^d-1. A339687

Sums of distinct powers of 7. A33044

a(n) = ∑_{i=1..n, j=1..n, gcd(i,j)=2} (n+1-i)*(n+1-j). A331761

Numbers which are representable as a sum of seventeen but no fewer consecutive nonnegative integers. A270302

Number of integer partitions of n - 1 containing fewer 1's than any other part. A364159

Coefficient of q³ in ν(n), where ν(0)=1, ν(1)=b and, for n>=2, ν(n)=b*ν(n-1)+λ*(1+q+q²+...+q^n-2)*ν(n-2) with (b,λ)=(2,2). A74360

a(1) = 1, then add, subtract and multiply 2, 3, 4; 5, 6, 7; ... in that order. A362271