Properties of the Number 16825

Sixteen Thousand Eight Hundred Twenty-Five

Basics

Value: 16824 → 16825 → 16826

Parity: odd

Prime: No

Previous Prime: 16823

Next Prime: 16829

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 ² × 673

Divisors: 1, 5, 25, 673, 3365, 16825

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100000110111001

Octal: 40671

Duodecimal: 98A1

Hexadecimal: 41b9

Square: 283080625

Square Root: 129.71121771072848

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) is the n-digit positive number with no trailing zeros and coprime to its digital reversal R(a(n)) at which abs(R(a(n))/a(n)-π) is minimized. A355623

Number T(n,k) of solid standard Young tableaux of n cells and height >= k; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A215120

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 12. A31600

Dirichlet convolution of primes (with 1) with Catalan numbers. A34763

Positive integers congruent to 2 (mod 4): a(n) = 4·n+2, for n >= 0. A16825

a(n) is the n-digit positive number with no trailing zeros and coprime to its digital reversal R(a(n)) at which abs(a(n)/R(a(n))-π) is minimized. A355622

Numbers k such that |cos(k)*cos(k+2)| < (cos(k+1))². A117672