103 742
103 742 is a composite number, even.
Propriétés
- Parité
- Pair
- Nombre de chiffres
- 6
- Somme des chiffres
- 17
- Racine numérique
- 8
- Palindrome
- Non
- Inversé
- 247 301
- Suite de Recamán
- a(94 915) = 103 742
- Nombre de diviseurs
- 4
- σ(n) — somme des diviseurs
- 155 616
Primalité
Prime factorization: 2 × 51871
Diviseurs et multiples
Représentations
- En lettres
- one hundred three thousand seven hundred forty-two
- Ordinal
- 103742nd
- Binaire
- 11001010100111110
- Octal
- 312476
- Hexadécimal
- 0x1953E
- Base64
- AZU+
Aussi vu comme
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 103742, here are decompositions:
- 19 + 103723 = 103742
- 43 + 103699 = 103742
- 61 + 103681 = 103742
- 73 + 103669 = 103742
- 151 + 103591 = 103742
- 181 + 103561 = 103742
- 193 + 103549 = 103742
- 271 + 103471 = 103742
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.149.62.
- Address
- 0.1.149.62
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.149.62
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 103 742 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.