number.wiki
Number

1,365

1,365 is a composite number, odd, a calendar year.

Deficient Number Harshad / Niven Squarefree Year

Properties

Parity
Odd
Digit count
4
Digit sum
15
Digital root
6
Palindrome
No
Divisor count
16
σ(n) — sum of divisors
2,688

Primality

Prime factorization: 3 × 5 × 7 × 13

Divisors & multiples

All divisors (16)
1 · 3 · 5 · 7 · 13 · 15 · 21 · 35 · 39 · 65 · 91 · 105 · 195 · 273 · 455 · 1365
Aliquot sum (sum of proper divisors): 1,323
Factor pairs (a × b = 1,365)
1 × 1365
3 × 455
5 × 273
7 × 195
13 × 105
15 × 91
21 × 65
35 × 39
First multiples
1,365 · 2,730 · 4,095 · 5,460 · 6,825 · 8,190 · 9,555 · 10,920 · 12,285 · 13,650

Representations

In words
one thousand three hundred sixty-five
Ordinal
1365th
Roman numeral
MCCCLXV
Binary
10101010101
Octal
2525
Hexadecimal
555

Also seen as

Unicode codepoint
Օ
U+0555
Uppercase letter (Lu)

UTF-8 encoding: D5 95 (2 bytes).

Lookup U+0555 on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#000555
RGB(0, 5, 85)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.85.