122,018
122,018 is a composite number, even.
122,018 (one hundred twenty-two thousand eighteen) is an even 6-digit number. It is a composite number with 18 divisors, and factors as 2 × 13² × 19². Written other ways, in hexadecimal, 0x1DCA2.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 810,221
- Square (n²)
- 14,888,392,324
- Cube (n³)
- 1,816,651,854,589,832
- Divisor count
- 18
- σ(n) — sum of divisors
- 209,169
- φ(n) — Euler's totient
- 53,352
- Sum of prime factors
- 66
Primality
Prime factorization: 2 × 13 2 × 19 2
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√122,018 = [349; (3, 4, 1, 1, 2, 2, 1, 1, 1, 1, 5, 1, 1, 3, 8, 1, 1, 3, 1, 1, 1, 1, 6, 1, …)]
Representations
- In words
- one hundred twenty-two thousand eighteen
- Ordinal
- 122018th
- Binary
- 11101110010100010
- Octal
- 356242
- Hexadecimal
- 0x1DCA2
- Base64
- Adyi
- One's complement
- 4,294,845,277 (32-bit)
- Scientific notation
- 1.22018 × 10⁵
- As a duration
- 122,018 s = 1 day, 9 hours, 53 minutes, 38 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκβιηʹ
- Mayan (base 20)
- 𝋯·𝋥·𝋠·𝋲
- Chinese
- 一十二萬二千零一十八
- Chinese (financial)
- 壹拾貳萬貳仟零壹拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 122018, here are decompositions:
- 7 + 122011 = 122018
- 67 + 121951 = 122018
- 97 + 121921 = 122018
- 109 + 121909 = 122018
- 151 + 121867 = 122018
- 229 + 121789 = 122018
- 307 + 121711 = 122018
- 331 + 121687 = 122018
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.220.162.
- Address
- 0.1.220.162
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.220.162
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 122,018 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.