122,042
122,042 is a composite number, even.
122,042 (one hundred twenty-two thousand forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 139 × 439. Written other ways, in hexadecimal, 0x1DCBA.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 240,221
- Square (n²)
- 14,894,249,764
- Cube (n³)
- 1,817,724,029,698,088
- Divisor count
- 8
- σ(n) — sum of divisors
- 184,800
- φ(n) — Euler's totient
- 60,444
- Sum of prime factors
- 580
Primality
Prime factorization: 2 × 139 × 439
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√122,042 = [349; (2, 1, 8, 1, 3, 2, 3, 1, 8, 1, 2, 698)]
Period length 12 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-two thousand forty-two
- Ordinal
- 122042nd
- Binary
- 11101110010111010
- Octal
- 356272
- Hexadecimal
- 0x1DCBA
- Base64
- Ady6
- One's complement
- 4,294,845,253 (32-bit)
- Scientific notation
- 1.22042 × 10⁵
- As a duration
- 122,042 s = 1 day, 9 hours, 54 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρκβμβʹ
- Mayan (base 20)
- 𝋯·𝋥·𝋢·𝋢
- Chinese
- 一十二萬二千零四十二
- Chinese (financial)
- 壹拾貳萬貳仟零肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 122042, here are decompositions:
- 3 + 122039 = 122042
- 13 + 122029 = 122042
- 31 + 122011 = 122042
- 79 + 121963 = 122042
- 199 + 121843 = 122042
- 331 + 121711 = 122042
- 409 + 121633 = 122042
- 421 + 121621 = 122042
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.220.186.
- Address
- 0.1.220.186
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.220.186
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 122,042 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.