Properties of the Number -16725

Sixteen Thousand Seven Hundred Twenty-Five

Basics

Value: -16726 → -16725 → -16724

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 ² × 223

Divisors: 1, 3, 5, 15, 25, 75, 223, 669, 1115, 3345

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -100000101010101

Octal: -40525

Duodecimal: -9819

Hexadecimal: -4155

Square: 279725625

Square Root: 129.32517156377563

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

Pseudoprimes to base 7. A5938

Number of inequivalent ways to color vertices of a cube using at most n colors. A543

Odd octagonal numbers: (2n+1)*(6n+1). A14641

Array read by descending antidiagonals: A(n,k) is the number of oriented colorings of the facets of a regular n-dimensional orthoplex using up to k colors. A325012

a(n) = ((6·n+19)*4ⁿ - 1)/3. A72260

Array read by descending antidiagonals: T(n,k) is the number of oriented colorings of the faces of a regular n-dimensional orthoplex (cross polytope) using k or fewer colors. A337891

Pseudoprimes to base 7 that are not squarefree. A243089

Numbers k(n) used for Cassels's Markoff forms MF(n) corresponding to the conjectured unique Markoff triples MT(n) with maximal entry m(n) = A002559(n), for n >= 1. A305310

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 99", based on the 5-celled von Neumann neighborhood. A278872

Octagonal numbers (A000567) in which parity of digits alternates. A297647