8,122
8,122 is a composite number, even.
8,122 (eight thousand one hundred twenty-two) is an even 4-digit number. It is a composite number with 8 divisors, and factors as 2 × 31 × 131. Written other ways, in hexadecimal, 0x1FBA.
Interestingness
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 13
- Digit product
- 32
- Digital root
- 4
- Palindrome
- No
- Bit width
- 13 bits
- Reversed
- 2,218
- Recamán's sequence
- a(10,523) = 8,122
- Square (n²)
- 65,966,884
- Cube (n³)
- 535,783,031,848
- Divisor count
- 8
- σ(n) — sum of divisors
- 12,672
- φ(n) — Euler's totient
- 3,900
- Sum of prime factors
- 164
Primality
Prime factorization: 2 × 31 × 131
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√8,122 = [90; (8, 5, 2, 1, 29, 2, 1, 4, 1, 3, 1, 3, 1, 19, 4, 4, 6, 1, 2, 3, 3, 25, 2, 4, …)]
Representations
- In words
- eight thousand one hundred twenty-two
- Ordinal
- 8122nd
- Binary
- 1111110111010
- Octal
- 17672
- Hexadecimal
- 0x1FBA
- Base64
- H7o=
- One's complement
- 57,413 (16-bit)
- Scientific notation
- 8.122 × 10³
- As a duration
- 8,122 s = 2 hours, 15 minutes, 22 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ηρκβʹ
- Mayan (base 20)
- 𝋡·𝋠·𝋦·𝋢
- Chinese
- 八千一百二十二
- Chinese (financial)
- 捌仟壹佰貳拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 8,122 = 6
- e — Euler's number (e)
- Digit 8,122 = 9
- φ — Golden ratio (φ)
- Digit 8,122 = 6
- √2 — Pythagoras's (√2)
- Digit 8,122 = 1
- ln 2 — Natural log of 2
- Digit 8,122 = 1
- γ — Euler-Mascheroni (γ)
- Digit 8,122 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 8122, here are decompositions:
- 5 + 8117 = 8122
- 11 + 8111 = 8122
- 29 + 8093 = 8122
- 41 + 8081 = 8122
- 53 + 8069 = 8122
- 83 + 8039 = 8122
- 113 + 8009 = 8122
- 173 + 7949 = 8122
Showing the first eight; more decompositions exist.
UTF-8 encoding: E1 BE BA (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.31.186.
- Address
- 0.0.31.186
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.31.186
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 8,122 Hz is closest to:
- Concert pitch (A4 = 440 Hz): B8 (7902.1 Hz, +48¢ — about midway to C9)
- Scientific pitch (C4 = 256 Hz): C9 (8192 Hz, -15¢)
- Baroque pitch (A4 = 415 Hz): C9 (7896.3 Hz, +49¢ — about midway to C♯9)
The digit sequence 8122 first appears in π at position 32,645 of the decimal expansion (the 32,645ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.