11,997
11,997 is a composite number, odd.
11,997 (eleven thousand nine hundred ninety-seven) is an odd 5-digit number. It is a composite number with 12 divisors, and factors as 3² × 31 × 43. Written other ways, in hexadecimal, 0x2EDD.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 27
- Digit product
- 567
- Digital root
- 9
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 79,911
- Recamán's sequence
- a(22,790) = 11,997
- Square (n²)
- 143,928,009
- Cube (n³)
- 1,726,704,323,973
- Divisor count
- 12
- σ(n) — sum of divisors
- 18,304
- φ(n) — Euler's totient
- 7,560
- Sum of prime factors
- 80
Primality
Prime factorization: 3 2 × 31 × 43
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√11,997 = [109; (1, 1, 7, 1, 1, 1, 1, 2, 1, 1, 1, 54, 7, 1, 1, 6, 1, 1, 7, 54, 1, 1, 1, 2, …)]
Period length 32 — the block in parentheses repeats forever.
Representations
- In words
- eleven thousand nine hundred ninety-seven
- Ordinal
- 11997th
- Binary
- 10111011011101
- Octal
- 27335
- Hexadecimal
- 0x2EDD
- Base64
- Lt0=
- One's complement
- 53,538 (16-bit)
- Scientific notation
- 1.1997 × 10⁴
- As a duration
- 11,997 s = 3 hours, 19 minutes, 57 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιαϡϟζʹ
- Mayan (base 20)
- 𝋡·𝋩·𝋳·𝋱
- Chinese
- 一萬一千九百九十七
- Chinese (financial)
- 壹萬壹仟玖佰玖拾柒
Digit at this position in famous constants
- π — Pi (π)
- Digit 11,997 = 3
- e — Euler's number (e)
- Digit 11,997 = 3
- φ — Golden ratio (φ)
- Digit 11,997 = 1
- √2 — Pythagoras's (√2)
- Digit 11,997 = 6
- ln 2 — Natural log of 2
- Digit 11,997 = 6
- γ — Euler-Mascheroni (γ)
- Digit 11,997 = 1
Also seen as
UTF-8 encoding: E2 BB 9D (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.46.221.
- Address
- 0.0.46.221
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.46.221
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 11,997 Hz is closest to:
- Concert pitch (A4 = 440 Hz): F♯9 (11839.8 Hz, +23¢)
- Scientific pitch (C4 = 256 Hz): G9 (12274.1 Hz, -40¢)
- Baroque pitch (A4 = 415 Hz): G9 (11831.1 Hz, +24¢)
The digit sequence 11997 first appears in π at position 293,054 of the decimal expansion (the 293,054ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.