16,993
16,993 is a prime, odd.
16,993 (sixteen thousand nine hundred ninety-three) is an odd 5-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x4261.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 28
- Digit product
- 1,458
- Digital root
- 1
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 39,961
- Recamán's sequence
- a(44,425) = 16,993
- Square (n²)
- 288,762,049
- Cube (n³)
- 4,906,933,498,657
- Divisor count
- 2
- σ(n) — sum of divisors
- 16,994
- φ(n) — Euler's totient
- 16,992
Primality
16,993 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√16,993 = [130; (2, 1, 3, 1, 86, 8, 2, 1, 1, 28, 2, 1, 2, 7, 1, 1, 9, 8, 23, 1, 1, 2, 1, 2, …)]
Representations
- In words
- sixteen thousand nine hundred ninety-three
- Ordinal
- 16993rd
- Binary
- 100001001100001
- Octal
- 41141
- Hexadecimal
- 0x4261
- Base64
- QmE=
- One's complement
- 48,542 (16-bit)
- Scientific notation
- 1.6993 × 10⁴
- As a duration
- 16,993 s = 4 hours, 43 minutes, 13 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιϛϡϟγʹ
- Mayan (base 20)
- 𝋢·𝋢·𝋩·𝋭
- Chinese
- 一萬六千九百九十三
- Chinese (financial)
- 壹萬陸仟玖佰玖拾參
Digit at this position in famous constants
- π — Pi (π)
- Digit 16,993 = 1
- e — Euler's number (e)
- Digit 16,993 = 5
- φ — Golden ratio (φ)
- Digit 16,993 = 0
- √2 — Pythagoras's (√2)
- Digit 16,993 = 3
- ln 2 — Natural log of 2
- Digit 16,993 = 9
- γ — Euler-Mascheroni (γ)
- Digit 16,993 = 2
Also seen as
UTF-8 encoding: E4 89 A1 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.66.97.
- Address
- 0.0.66.97
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.66.97
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 16,993 Hz is closest to:
- Concert pitch (A4 = 440 Hz): C10 (16744 Hz, +26¢)
- Scientific pitch (C4 = 256 Hz): C♯10 (17358.2 Hz, -37¢)
- Baroque pitch (A4 = 415 Hz): C♯10 (16731.8 Hz, +27¢)
The digit sequence 16993 first appears in π at position 73,538 of the decimal expansion (the 73,538ordinal-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
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.