Properties of the Number 3685

Three Thousand Six Hundred Eighty-Five

Basics

Value: 3684 → 3685 → 3686

Parity: odd

Prime: No

Previous Prime: 3677

Next Prime: 3691

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 11 × 67

Divisors: 1, 5, 11, 55, 67, 335, 737, 3685

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111001100101

Octal: 7145

Duodecimal: 2171

Hexadecimal: e65

Square: 13579225

Square Root: 60.70420084310476

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: Yes

Fermat Number: No

Cullen Number: No

OEIS Sequences

Partial sums of A299256. A299262

Numbers m such that there are precisely 3 groups of order m. A55561

G.f. satisfies: A(x) = 1 + x/A(-x·A(x)²). A213091

Numerator of 1/36 - 1/n². A61045

a(n) = Frobenius number for 3 successive primes = F[p(n), p(n+1), p(n+2)]. A138989

Alkane (or paraffin) numbers l(7,n). A5994

Multiples of 11 whose digit sum is a multiple of 11. A216995

Number of strict integer partitions of n where some part is a difference of two consecutive parts. A364536

"Orderly" Friedman numbers (or "good" or "nice" Friedman numbers): Friedman numbers (A036057) where the construction digits are used in the proper order. A80035

Number of ON cells after n generations of the Schrandt-Ulam cellular automaton on the square grid that is described in the Comments. A170896