Properties of the Number 16425

Sixteen Thousand Four Hundred Twenty-Five

Basics

Value: 16424 → 16425 → 16426

Parity: odd

Prime: No

Previous Prime: 16421

Next Prime: 16427

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 ² × 73

Divisors: 1, 3, 5, 9, 15, 25, 45, 73, 75, 219

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100000000101001

Octal: 40051

Duodecimal: 9609

Hexadecimal: 4029

Square: 269780625

Square Root: 128.16005617976296

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 partitions of 2n into parts such that the largest multiplicity equals n. A232697

Number of free pure symmetric multifunctions with one atom, n positions, and no empty or unitary parts (subexpressions of the form x[] or x[y]). A303027

Triangle of numbers obtained from the partition array A134145. A134146

Terms k of A228058 for which A048146(k)+A162296(k) >= 2·k, where A048146 is the sum of non-unitary divisors, and A162296 is the sum of divisors that have a square factor. A389219

a(n) = ∑_j=1..n ∑_k=1..n φ(j·k) / φ(k). A372636

9 times octagonal numbers: a(n) = 9·n*(3·n-2). A64201

a(1)=5; a(n) is concatenation of squares of digits in a(n-1) (in base 10). A82026

Number of n-crossing 3 component links with alternating braids of 3 strands. A94032

Nonsquarefree numbers k such that A003415(k) divides A276086(k), where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function. A371085

Denominators of continued fraction convergents to sqrt(152). A41279