11,999
11,999 is a composite number, odd.
11,999 (eleven thousand nine hundred ninety-nine) is an odd 5-digit number. It is a composite number with 6 divisors, and factors as 13² × 71. Written other ways, in hexadecimal, 0x2EDF.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 29
- Digit product
- 729
- Digital root
- 2
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 99,911
- Flips to (rotate 180°)
- 66,611
- Recamán's sequence
- a(22,786) = 11,999
- Square (n²)
- 143,976,001
- Cube (n³)
- 1,727,568,035,999
- Divisor count
- 6
- σ(n) — sum of divisors
- 13,176
- φ(n) — Euler's totient
- 10,920
- Sum of prime factors
- 97
Primality
Prime factorization: 13 2 × 71
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√11,999 = [109; (1, 1, 5, 1, 3, 7, 3, 2, 1, 1, 8, 1, 14, 1, 3, 21, 1, 1, 1, 8, 9, 1, 5, 2, …)]
Period length 54 — the block in parentheses repeats forever.
Representations
- In words
- eleven thousand nine hundred ninety-nine
- Ordinal
- 11999th
- Binary
- 10111011011111
- Octal
- 27337
- Hexadecimal
- 0x2EDF
- Base64
- Lt8=
- One's complement
- 53,536 (16-bit)
- Scientific notation
- 1.1999 × 10⁴
- As a duration
- 11,999 s = 3 hours, 19 minutes, 59 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιαϡϟθʹ
- Mayan (base 20)
- 𝋡·𝋩·𝋳·𝋳
- Chinese
- 一萬一千九百九十九
- Chinese (financial)
- 壹萬壹仟玖佰玖拾玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 11,999 = 1
- e — Euler's number (e)
- Digit 11,999 = 6
- φ — Golden ratio (φ)
- Digit 11,999 = 6
- √2 — Pythagoras's (√2)
- Digit 11,999 = 3
- ln 2 — Natural log of 2
- Digit 11,999 = 4
- γ — Euler-Mascheroni (γ)
- Digit 11,999 = 7
Also seen as
UTF-8 encoding: E2 BB 9F (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.46.223.
- Address
- 0.0.46.223
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.46.223
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 11,999 Hz is closest to:
- Concert pitch (A4 = 440 Hz): F♯9 (11839.8 Hz, +23¢)
- Scientific pitch (C4 = 256 Hz): G9 (12274.1 Hz, -39¢)
- Baroque pitch (A4 = 415 Hz): G9 (11831.1 Hz, +24¢)
The digit sequence 11999 first appears in π at position 25,582 of the decimal expansion (the 25,582ordinal-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.