55,009
55,009 is a prime, odd.
55,009 (fifty-five thousand nine) is an odd 5-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xD6E1.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 90,055
- Recamán's sequence
- a(141,537) = 55,009
- Square (n²)
- 3,025,990,081
- Cube (n³)
- 166,456,688,365,729
- Divisor count
- 2
- σ(n) — sum of divisors
- 55,010
- φ(n) — Euler's totient
- 55,008
Primality
55,009 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√55,009 = [234; (1, 1, 5, 1, 3, 15, 1, 10, 1, 3, 1, 2, 1, 2, 9, 2, 2, 5, 4, 24, 2, 4, 2, 4, …)]
Representations
- In words
- fifty-five thousand nine
- Ordinal
- 55009th
- Binary
- 1101011011100001
- Octal
- 153341
- Hexadecimal
- 0xD6E1
- Base64
- 1uE=
- One's complement
- 10,526 (16-bit)
- Scientific notation
- 5.5009 × 10⁴
- As a duration
- 55,009 s = 15 hours, 16 minutes, 49 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵νεθʹ
- Mayan (base 20)
- 𝋦·𝋱·𝋪·𝋩
- Chinese
- 五萬五千零九
- Chinese (financial)
- 伍萬伍仟零玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 55,009 = 1
- e — Euler's number (e)
- Digit 55,009 = 7
- φ — Golden ratio (φ)
- Digit 55,009 = 0
- √2 — Pythagoras's (√2)
- Digit 55,009 = 2
- ln 2 — Natural log of 2
- Digit 55,009 = 8
- γ — Euler-Mascheroni (γ)
- Digit 55,009 = 0
Also seen as
UTF-8 encoding: ED 9B A1 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.214.225.
- Address
- 0.0.214.225
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.214.225
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 55009 first appears in π at position 251,444 of the decimal expansion (the 251,444ordinal-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.