122,390
122,390 is a composite number, even.
122,390 (one hundred twenty-two thousand three hundred ninety) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 5 × 12,239. Written other ways, in hexadecimal, 0x1DE16.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 93,221
- Square (n²)
- 14,979,312,100
- Cube (n³)
- 1,833,318,007,919,000
- Divisor count
- 8
- σ(n) — sum of divisors
- 220,320
- φ(n) — Euler's totient
- 48,952
- Sum of prime factors
- 12,246
Primality
Prime factorization: 2 × 5 × 12239
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√122,390 = [349; (1, 5, 2, 1, 3, 5, 1, 1, 22, 36, 1, 3, 1, 1, 3, 19, 1, 2, 2, 4, 8, 1, 1, 1, …)]
Representations
- In words
- one hundred twenty-two thousand three hundred ninety
- Ordinal
- 122390th
- Binary
- 11101111000010110
- Octal
- 357026
- Hexadecimal
- 0x1DE16
- Base64
- Ad4W
- One's complement
- 4,294,844,905 (32-bit)
- Scientific notation
- 1.2239 × 10⁵
- As a duration
- 122,390 s = 1 day, 9 hours, 59 minutes, 50 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρκβτϟʹ
- Mayan (base 20)
- 𝋯·𝋥·𝋳·𝋪
- Chinese
- 一十二萬二千三百九十
- Chinese (financial)
- 壹拾貳萬貳仟參佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 122390, here are decompositions:
- 3 + 122387 = 122390
- 43 + 122347 = 122390
- 67 + 122323 = 122390
- 127 + 122263 = 122390
- 139 + 122251 = 122390
- 181 + 122209 = 122390
- 223 + 122167 = 122390
- 241 + 122149 = 122390
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.222.22.
- Address
- 0.1.222.22
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.222.22
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 122,390 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 122390 first appears in π at position 317,267 of the decimal expansion (the 317,267ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.