Properties of the Number 3785

Three Thousand Seven Hundred Eighty-Five

Basics

Value: 3784 → 3785 → 3786

Parity: odd

Prime: No

Previous Prime: 3779

Next Prime: 3793

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 757

Divisors: 1, 5, 757, 3785

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111011001001

Octal: 7311

Duodecimal: 2235

Hexadecimal: ec9

Square: 14326225

Square Root: 61.5223536610881

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

Centered square numbers: a(n) = 2·n*(n+1)+1. Sums of two consecutive squares. Also, consider all Pythagorean triples (X, Y, Z=Y+1) ordered by increasing Z; then sequence gives Z values. A1844

a(n) = 8·n² - 4·n + 1. A80856

Numbers whose binary expansion generates rotationally symmetric XOR-triangles. A334556

Expansion of 1/(1 - x - x⁶ - x¹¹ + x¹²). A175773

Composite and every divisor (except 1) contains the digit 5. A62672

Number of alternating strict compositions of n. Number of alternating (up/down or down/up) permutations of strict integer partitions of n. A349054

Number of unordered rooted trees where each subtree from given node has the same number of nodes. A127524

Denominator of (1+σ(s)) / ((s+1)/2), where s is the square of n prime-shifted once (s = A003961(n)² = A003961(n²)). A337339

Numbers m that generate rotationally symmetrical XOR-triangles T(m) that have central triangles of zeros. A334769

Length of the hypotenuse of an integer right triangle with the hypotenuse being one more than the longer side. The shorter sides are just consecutive odd numbers 3, 5, 7, ... A99776