Number
993
993 is a composite number, odd, a calendar year.
Properties
- Parity
- Odd
- Digit count
- 3
- Digit sum
- 21
- Digital root
- 3
- Palindrome
- No
- Divisor count
- 4
- σ(n) — sum of divisors
- 1,328
Primality
Prime factorization: 3 × 331
Divisors & multiples
Aliquot sum (sum of proper divisors):
335
Representations
- In words
- nine hundred ninety-three
- Ordinal
- 993rd
- Roman numeral
- CMXCIII
- Binary
- 1111100001
- Octal
- 1741
- Hexadecimal
- 3E1
Also seen as
Unicode codepoint
ϡ
U+03E1
Lowercase letter (Ll)
UTF-8 encoding: CF A1 (2 bytes).
Network port
TCP/UDP port 993 is the well-known port for IMAPS — IMAP over TLS.
Hex color
#0003E1
RGB(0, 3, 225)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.225.