5,209
5,209 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 13 bits
- Reversed
- 9,025
- Recamán's sequence
- a(4,718) = 5,209
- Square (n²)
- 27,133,681
- Cube (n³)
- 141,339,344,329
- Divisor count
- 2
- σ(n) — sum of divisors
- 5,210
- φ(n) — Euler's totient
- 5,208
Primality
5,209 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- five thousand two hundred nine
- Ordinal
- 5209th
- Binary
- 1010001011001
- Octal
- 12131
- Hexadecimal
- 0x1459
- Base64
- FFk=
- One's complement
- 60,326 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵εσθʹ
- Mayan (base 20)
- 𝋭·𝋠·𝋩
- Chinese
- 五千二百零九
- Chinese (financial)
- 伍仟貳佰零玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 5,209 = 3
- e — Euler's number (e)
- Digit 5,209 = 0
- φ — Golden ratio (φ)
- Digit 5,209 = 1
- √2 — Pythagoras's (√2)
- Digit 5,209 = 0
- ln 2 — Natural log of 2
- Digit 5,209 = 5
- γ — Euler-Mascheroni (γ)
- Digit 5,209 = 1
Also seen as
UTF-8 encoding: E1 91 99 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.20.89.
- Address
- 0.0.20.89
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.20.89
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.
Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.
The digit sequence 5209 first appears in π at position 325 of the decimal expansion (the 325ordinal-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.