8,222
8,222 is a composite number, even.
8,222 (eight thousand two hundred twenty-two) is an even 4-digit number. It is a composite number with 4 divisors, and factors as 2 × 4,111. Written other ways, in hexadecimal, 0x201E.
Interestingness
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 14
- Digit product
- 64
- Digital root
- 5
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 2,228
- Recamán's sequence
- a(10,323) = 8,222
- Square (n²)
- 67,601,284
- Cube (n³)
- 555,817,757,048
- Divisor count
- 4
- σ(n) — sum of divisors
- 12,336
- φ(n) — Euler's totient
- 4,110
- Sum of prime factors
- 4,113
Primality
Prime factorization: 2 × 4111
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√8,222 = [90; (1, 2, 12, 1, 1, 1, 1, 1, 2, 3, 3, 7, 1, 15, 1, 1, 1, 1, 5, 4, 25, 1, 2, 90, …)]
Period length 48 — the block in parentheses repeats forever.
Representations
- In words
- eight thousand two hundred twenty-two
- Ordinal
- 8222nd
- Binary
- 10000000011110
- Octal
- 20036
- Hexadecimal
- 0x201E
- Base64
- IB4=
- One's complement
- 57,313 (16-bit)
- Scientific notation
- 8.222 × 10³
- As a duration
- 8,222 s = 2 hours, 17 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ησκβʹ
- Mayan (base 20)
- 𝋡·𝋠·𝋫·𝋢
- Chinese
- 八千二百二十二
- Chinese (financial)
- 捌仟貳佰貳拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 8,222 = 2
- e — Euler's number (e)
- Digit 8,222 = 5
- φ — Golden ratio (φ)
- Digit 8,222 = 4
- √2 — Pythagoras's (√2)
- Digit 8,222 = 5
- ln 2 — Natural log of 2
- Digit 8,222 = 4
- γ — Euler-Mascheroni (γ)
- Digit 8,222 = 9
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 8222, here are decompositions:
- 3 + 8219 = 8222
- 13 + 8209 = 8222
- 31 + 8191 = 8222
- 43 + 8179 = 8222
- 61 + 8161 = 8222
- 163 + 8059 = 8222
- 211 + 8011 = 8222
- 229 + 7993 = 8222
Showing the first eight; more decompositions exist.
UTF-8 encoding: E2 80 9E (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.32.30.
- Address
- 0.0.32.30
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.32.30
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 8,222 Hz is closest to:
- Concert pitch (A4 = 440 Hz): C9 (8372 Hz, -31¢)
- Scientific pitch (C4 = 256 Hz): C9 (8192 Hz, +6¢)
- Baroque pitch (A4 = 415 Hz): C♯9 (8365.9 Hz, -30¢)
The digit sequence 8222 first appears in π at position 9,292 of the decimal expansion (the 9,292ordinal-suffix:nd 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.