Number
698
698 is a composite number, even, a calendar year.
Properties
- Parity
- Even
- Digit count
- 3
- Digit sum
- 23
- Digital root
- 5
- Palindrome
- No
- Divisor count
- 4
- σ(n) — sum of divisors
- 1,050
Primality
Prime factorization: 2 × 349
Divisors & multiples
Aliquot sum (sum of proper divisors):
352
Representations
- In words
- six hundred ninety-eight
- Ordinal
- 698th
- Roman numeral
- DCXCVIII
- Binary
- 1010111010
- Octal
- 1272
- Hexadecimal
- 2BA
Also seen as
Goldbach decomposition
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 698, here are decompositions:
- 7 + 691 = 698
- 37 + 661 = 698
- 67 + 631 = 698
- 79 + 619 = 698
- 97 + 601 = 698
- 127 + 571 = 698
- 151 + 547 = 698
- 157 + 541 = 698
Showing the first eight; more decompositions exist.
Unicode codepoint
ʺ
U+02BA
Modifier letter (Lm)
UTF-8 encoding: CA BA (2 bytes).
Hex color
#0002BA
RGB(0, 2, 186)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.186.