Number
1,488
1,488 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 21
- Digital root
- 3
- Palindrome
- No
- Divisor count
- 20
- σ(n) — sum of divisors
- 3,968
Primality
Prime factorization: 2 4 × 3 × 31
Divisors & multiples
All divisors (20)
Aliquot sum (sum of proper divisors):
2,480
Factor pairs (a × b = 1,488)
First multiples
Representations
- In words
- one thousand four hundred eighty-eight
- Ordinal
- 1488th
- Roman numeral
- MCDLXXXVIII
- Binary
- 10111010000
- Octal
- 2720
- Hexadecimal
- 5D0
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1488, here are decompositions:
- 5 + 1483 = 1488
- 7 + 1481 = 1488
- 17 + 1471 = 1488
- 29 + 1459 = 1488
- 37 + 1451 = 1488
- 41 + 1447 = 1488
- 59 + 1429 = 1488
- 61 + 1427 = 1488
Showing the first eight; more decompositions exist.
Unicode codepoint
א
U+05D0
Other letter (Lo)
UTF-8 encoding: D7 90 (2 bytes).
Hex color
#0005D0
RGB(0, 5, 208)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.208.