Properties of the Number 3885

Three Thousand Eight Hundred Eighty-Five

Basics

Value: 3884 → 3885 → 3886

Parity: odd

Prime: No

Previous Prime: 3881

Next Prime: 3889

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 7 × 37

Divisors: 1, 3, 5, 7, 15, 21, 35, 37, 105, 111

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100101101

Octal: 7455

Duodecimal: 22B9

Hexadecimal: f2d

Square: 15093225

Square Root: 62.32976816898969

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

Preperiod (or threshold) of orbit of Post's {00, 1101} tag system applied to the word (100)ⁿ, or -1 if this word has an unbounded trajectory. A284119

Number of integer partitions of n with integer alternating product. A347446

a(n) = 3·n² + 6·n. A67725

Least k such that there are exactly n multisets that can be obtained by choosing a divisor of each prime index of k. A355734

Number of primitive n-bead necklaces (turning over is allowed) where complements are equivalent. A46

Lengths of successive generations of the Kolakoski sequence A000002. A54352

Numbers k for which nontrivial positive magic squares of exactly 7 different orders with magic sum k exist. For a definition of nontrivial positive magic squares, see A125005. A125014

Number of strongly unimodal partitions of n (strongly unimodal means strictly increasing then strictly decreasing). A59618

Number of integer partitions of n with reverse-alternating sum equal to the reverse-alternating sum of their conjugate. A345196

Odd numbers m such that there exists an even number k < m with φ(k) = φ(m). A36798