Properties of the Number 16205

Sixteen Thousand Two Hundred Five

Basics

Value: 16204 → 16205 → 16206

Parity: odd

Prime: No

Previous Prime: 16193

Next Prime: 16217

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 5 × 7 × 463

Divisors: 1, 5, 7, 35, 463, 2315, 3241, 16205

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11111101001101

Octal: 37515

Duodecimal: 9465

Hexadecimal: 3f4d

Square: 262602025

Square Root: 127.29886095327012

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) = n² + a(n-1), with a(1)=0. A168559

Number of ways to write n as an ordered sum of 7 primes (counting 1 as a prime). A341986

Numbers k in which the digits of k² appear. A29774

Denominators of continued fraction convergents to sqrt(175). A41323

Number of asymmetric mobiles (circular rooted trees) with n nodes and 5 leaves. A55366

1/3 of the number of permutations of 2 indistinguishable copies of 1..n with exactly 3 local maxima. A152495

Sum of squares of numbers less than n that do not divide n. A276984

Pisot sequence E(4,10). A20709

Number of ways to partition {1,...,n} into arithmetic progressions of length >= 1. A53732

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 929", based on the 5-celled von Neumann neighborhood. A273781