Number
1,358
1,358 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 17
- Digital root
- 8
- Palindrome
- No
- Divisor count
- 8
- σ(n) — sum of divisors
- 2,352
Primality
Prime factorization: 2 × 7 × 97
Divisors & multiples
Aliquot sum (sum of proper divisors):
994
First multiples
Representations
- In words
- one thousand three hundred fifty-eight
- Ordinal
- 1358th
- Roman numeral
- MCCCLVIII
- Binary
- 10101001110
- Octal
- 2516
- Hexadecimal
- 54E
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1358, here are decompositions:
- 31 + 1327 = 1358
- 37 + 1321 = 1358
- 61 + 1297 = 1358
- 67 + 1291 = 1358
- 79 + 1279 = 1358
- 109 + 1249 = 1358
- 127 + 1231 = 1358
- 157 + 1201 = 1358
Showing the first eight; more decompositions exist.
Unicode codepoint
Վ
U+054E
Uppercase letter (Lu)
UTF-8 encoding: D5 8E (2 bytes).
Hex color
#00054E
RGB(0, 5, 78)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.78.