Properties of the Number 365

Three Hundred Sixty-Five

Basics

Value: 364 → 365 → 366

Parity: odd

Prime: No

Previous Prime: 359

Next Prime: 367

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 5 × 73

Divisors: 1, 5, 73, 365

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101101101

Octal: 555

Duodecimal: 265

Hexadecimal: 16d

Square: 133225

Square Root: 19.1049731745428

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

Binary palindromes: numbers whose binary expansion is palindromic. A6995

a(n) = (3ⁿ + 1)/2. A7051

Permutation of natural numbers: a(n) = (A003961(n)+1) / 2 [where A003961(n) shifts the prime factorization of n one step towards larger primes]. A48673

a(n) = ceiling(n²/2). A982

Ordered hypotenuses (with multiplicity) of primitive Pythagorean triangles. A20882

Arithmetic derivative of the primorial base exp-function: a(n) = A003415(A276086(n)). A327860

Number of partitions of n if there are two kinds of 1's and two kinds of 2's. A97

a(n) = 10·n + 5. A17329

a(n) = 2·a(n-1) + 3·a(n-2), a(0) = a(1) = 1. A46717