Properties of the Number 16672

Sixteen Thousand Six Hundred Seventy-Two

Basics

Value: 16671 → 16672 → 16673

Parity: even

Prime: No

Previous Prime: 16661

Next Prime: 16673

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁵ × 521

Divisors: 1, 2, 4, 8, 16, 32, 521, 1042, 2084, 4168

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000100100000

Octal: 40440

Duodecimal: 9794

Hexadecimal: 4120

Square: 277955584

Square Root: 129.1200991325518

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) = Z(S_m; σ[1](n), σ[2](n),..., σ[m](n)) where Z(S_m; x₁,x₂,...,x_m) is the cycle index of the symmetric group S_m and σ[k](n) is the sum of k-th powers of divisors of n; m=3. A68020

Triangle read by rows: T(n, k) = A084029(n, k)/n. A84033

Beastly fax numbers: numbers containing the fax number of the Beast (667, one more than its regular number) in their decimal expansion. A138563

Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 262", based on the 5-celled von Neumann neighborhood. A287290

Numbers whose binary indices are all semiprimes. A371454

a(0)=2; a(n) is the smallest k > a(n-1) such that the fractional part of k^1/11 starts with n. A34076

a(n) = ∑_s=0..n (-1)^s * ( ∑_k=0..s binomial(n,k) )³. A348457

Numbers k such that ∑_i=1..k d(i)² is a square c², where d(i) is the number of divisors of i. A186429

a(n) = ∑_k=1..n (-1)^k+1 * lcm(n,k) / gcd(n,k). A333493

Numbers n = concat(x,y) such that the product x·y | n. Leading zeros in y allowed. A255725