2,164
2,164 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 13
- Digit product
- 48
- Digital root
- 4
- Palindrome
- No
- Bit width
- 12 bits
- Reversed
- 4,612
- Recamán's sequence
- a(3,423) = 2,164
- Square (n²)
- 4,682,896
- Cube (n³)
- 10,133,786,944
- Divisor count
- 6
- σ(n) — sum of divisors
- 3,794
- φ(n) — Euler's totient
- 1,080
- Sum of prime factors
- 545
Primality
Prime factorization: 2 2 × 541
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- two thousand one hundred sixty-four
- Ordinal
- 2164th
- Roman numeral
- MMCLXIV
- Binary
- 100001110100
- Octal
- 4164
- Hexadecimal
- 0x874
- Base64
- CHQ=
- One's complement
- 63,371 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵βρξδʹ
- Mayan (base 20)
- 𝋥·𝋨·𝋤
- Chinese
- 二千一百六十四
- Chinese (financial)
- 貳仟壹佰陸拾肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 2,164 = 0
- e — Euler's number (e)
- Digit 2,164 = 7
- φ — Golden ratio (φ)
- Digit 2,164 = 2
- √2 — Pythagoras's (√2)
- Digit 2,164 = 6
- ln 2 — Natural log of 2
- Digit 2,164 = 5
- γ — Euler-Mascheroni (γ)
- Digit 2,164 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 2164, here are decompositions:
- 3 + 2161 = 2164
- 11 + 2153 = 2164
- 23 + 2141 = 2164
- 53 + 2111 = 2164
- 83 + 2081 = 2164
- 101 + 2063 = 2164
- 137 + 2027 = 2164
- 167 + 1997 = 2164
Showing the first eight; more decompositions exist.
UTF-8 encoding: E0 A1 B4 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.8.116.
- Address
- 0.0.8.116
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.8.116
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 2164 first appears in π at position 991 of the decimal expansion (the 991ordinal-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.