20,822
20,822 is a composite number, even.
20,822 (twenty thousand eight hundred twenty-two) is an even 5-digit number. It is a composite number with 8 divisors, and factors as 2 × 29 × 359. Written other ways, in hexadecimal, 0x5156.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 22,802
- Recamán's sequence
- a(42,195) = 20,822
- Square (n²)
- 433,555,684
- Cube (n³)
- 9,027,496,452,248
- Divisor count
- 8
- σ(n) — sum of divisors
- 32,400
- φ(n) — Euler's totient
- 10,024
- Sum of prime factors
- 390
Primality
Prime factorization: 2 × 29 × 359
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√20,822 = [144; (3, 2, 1, 5, 5, 3, 1, 2, 2, 2, 3, 1, 1, 1, 6, 1, 21, 3, 40, 1, 8, 1, 40, 3, …)]
Period length 42 — the block in parentheses repeats forever.
Representations
- In words
- twenty thousand eight hundred twenty-two
- Ordinal
- 20822nd
- Binary
- 101000101010110
- Octal
- 50526
- Hexadecimal
- 0x5156
- Base64
- UVY=
- One's complement
- 44,713 (16-bit)
- Scientific notation
- 2.0822 × 10⁴
- As a duration
- 20,822 s = 5 hours, 47 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵κωκβʹ
- Mayan (base 20)
- 𝋢·𝋬·𝋡·𝋢
- Chinese
- 二萬零八百二十二
- Chinese (financial)
- 貳萬零捌佰貳拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 20,822 = 0
- e — Euler's number (e)
- Digit 20,822 = 3
- φ — Golden ratio (φ)
- Digit 20,822 = 6
- √2 — Pythagoras's (√2)
- Digit 20,822 = 8
- ln 2 — Natural log of 2
- Digit 20,822 = 6
- γ — Euler-Mascheroni (γ)
- Digit 20,822 = 5
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 20822, here are decompositions:
- 13 + 20809 = 20822
- 73 + 20749 = 20822
- 79 + 20743 = 20822
- 103 + 20719 = 20822
- 181 + 20641 = 20822
- 211 + 20611 = 20822
- 223 + 20599 = 20822
- 229 + 20593 = 20822
Showing the first eight; more decompositions exist.
UTF-8 encoding: E5 85 96 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.81.86.
- Address
- 0.0.81.86
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.81.86
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 20822 first appears in π at position 63,228 of the decimal expansion (the 63,228ordinal-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.