Properties of the Number 42285

Forty-Two Thousand Two Hundred Eighty-Five

Basics

Value: 42284 → 42285 → 42286

Parity: odd

Prime: No

Previous Prime: 42283

Next Prime: 42293

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 2819

Divisors: 1, 3, 5, 15, 2819, 8457, 14095, 42285

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010100101101

Octal: 122455

Duodecimal: 20579

Hexadecimal: a52d

Square: 1788021225

Square Root: 205.63316853076014

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

Partial sums of A299258. A299264

Number of connected 3 X n binary matrices (divided by 2). A54419

a(n) = a(n-1) + a(round(2*(n-1)/3)) + a(round((n-1)/3)) with a(1)=a(2)=1. A33499

a(n) = 44·n² + 1. A158630

Number of 6 X 6 X 6 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n. A166214

Number of nXnXn triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= 12. A166207

a(n) = 15·binomial(n,6)-6·binomial(n-2,4)+binomial(n-4,4). A274311

Number of partitions of n into parts not of the form 23k, 23k+7 or 23k-7. Also number of partitions with at most 6 parts of size 1 and differences between parts at distance 10 are greater than 1. A35995

Denominators of continued fraction convergents to sqrt(668). A42285