number.wiki
Number

987

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

Deficient Number Fibonacci Sphenic Number Squarefree Year

Properties

Parity
Odd
Digit count
3
Digit sum
24
Digital root
6
Palindrome
No
Divisor count
8
σ(n) — sum of divisors
1,536

Primality

Prime factorization: 3 × 7 × 47

Divisors & multiples

All divisors (8)
1 · 3 · 7 · 21 · 47 · 141 · 329 · 987
Aliquot sum (sum of proper divisors): 549
Factor pairs (a × b = 987)
1 × 987
3 × 329
7 × 141
21 × 47
First multiples
987 · 1,974 · 2,961 · 3,948 · 4,935 · 5,922 · 6,909 · 7,896 · 8,883 · 9,870

Representations

In words
nine hundred eighty-seven
Ordinal
987th
Roman numeral
CMLXXXVII
Binary
1111011011
Octal
1733
Hexadecimal
3DB

Also seen as

Unicode codepoint
ϛ
U+03DB
Lowercase letter (Ll)

UTF-8 encoding: CF 9B (2 bytes).

Hex color
#0003DB
RGB(0, 3, 219)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.219.

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number
000000987
Federal Reserve
United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.