16,223
16,223 is a prime, odd.
16,223 (sixteen thousand two hundred twenty-three) is an odd 5-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x3F5F.
Interestingness
Properties
Primality
16,223 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√16,223 = [127; (2, 1, 2, 2, 2, 19, 5, 2, 17, 1, 2, 1, 5, 1, 22, 3, 3, 1, 3, 1, 1, 4, 1, 1, …)]
Representations
- In words
- sixteen thousand two hundred twenty-three
- Ordinal
- 16223rd
- Binary
- 11111101011111
- Octal
- 37537
- Hexadecimal
- 0x3F5F
- Base64
- P18=
- One's complement
- 49,312 (16-bit)
- Scientific notation
- 1.6223 × 10⁴
- As a duration
- 16,223 s = 4 hours, 30 minutes, 23 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιϛσκγʹ
- Mayan (base 20)
- 𝋢·𝋠·𝋫·𝋣
- Chinese
- 一萬六千二百二十三
- Chinese (financial)
- 壹萬陸仟貳佰貳拾參
Digit at this position in famous constants
- π — Pi (π)
- Digit 16,223 = 4
- e — Euler's number (e)
- Digit 16,223 = 3
- φ — Golden ratio (φ)
- Digit 16,223 = 0
- √2 — Pythagoras's (√2)
- Digit 16,223 = 3
- ln 2 — Natural log of 2
- Digit 16,223 = 9
- γ — Euler-Mascheroni (γ)
- Digit 16,223 = 4
Also seen as
UTF-8 encoding: E3 BD 9F (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.63.95.
- Address
- 0.0.63.95
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.63.95
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 16,223 Hz is closest to:
- Concert pitch (A4 = 440 Hz): B9 (15804.3 Hz, +45¢ — about midway to C10)
- Scientific pitch (C4 = 256 Hz): C10 (16384 Hz, -17¢)
- Baroque pitch (A4 = 415 Hz): C10 (15792.7 Hz, +47¢ — about midway to C♯10)
The digit sequence 16223 first appears in π at position 29,141 of the decimal expansion (the 29,141ordinal-suffix:st 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
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.