number.wiki
Number

525

525 is a composite number, odd, a calendar year.

Deficient Number Palindrome Year

Properties

Parity
Odd
Digit count
3
Digit sum
12
Digital root
3
Palindrome
Yes
Divisor count
12
σ(n) — sum of divisors
992

Primality

Prime factorization: 3 × 5 2 × 7

Divisors & multiples

All divisors (12)
1 · 3 · 5 · 7 · 15 · 21 · 25 · 35 · 75 · 105 · 175 · 525
Aliquot sum (sum of proper divisors): 467
Factor pairs (a × b = 525)
1 × 525
3 × 175
5 × 105
7 × 75
15 × 35
21 × 25
First multiples
525 · 1,050 · 1,575 · 2,100 · 2,625 · 3,150 · 3,675 · 4,200 · 4,725 · 5,250

Representations

In words
five hundred twenty-five
Ordinal
525th
Roman numeral
DXXV
Binary
1000001101
Octal
1015
Hexadecimal
20D

Also seen as

Unicode codepoint
ȍ
U+020D
Lowercase letter (Ll)

UTF-8 encoding: C8 8D (2 bytes).

Hex color
#00020D
RGB(0, 2, 13)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.13.