Properties of the Number 17668

Seventeen Thousand Six Hundred Sixty-Eight

Basics

Value: 17667 → 17668 → 17669

Parity: even

Prime: No

Previous Prime: 17659

Next Prime: 17669

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 7 × 631

Divisors: 1, 2, 4, 7, 14, 28, 631, 1262, 2524, 4417

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100010100000100

Octal: 42404

Duodecimal: A284

Hexadecimal: 4504

Square: 312158224

Square Root: 132.92102918650608

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

Number of ways to split an integer partition of n into contiguous subsequences with strictly increasing sums. A336134

a(n) = ∑_{k=1..n, gcd(n,k) = 1} k⁴. A53820

Difference between 2^2·n-1 and the next larger square. A238454

Difference between (smallest square strictly greater than 2ⁿ) and 2ⁿ. A56008

Admirable Harshad numbers n such that the subtracted divisor is equal to the digital sum of n. A111948

Least number·such that xⁿ has n digits equal to k. Case k = 2. A285449

a(n) = ∑_{1 <= j <= n/2, gcd(j,n)=1} j⁴. A295576

Number of lines through exactly 5 points of an n X n grid of points. A18812

Numbers whose base-4 representation contains exactly four 0's and four 1's. A45037

a(n) = A000695(A014486(n)). A83931