4,018
4,018 is a composite number, even.
4,018 (four thousand eighteen) is an even 4-digit number. It is a composite number with 12 divisors, and factors as 2 × 7² × 41. Written other ways, in binary, 111110110010.
Interestingness
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 12 bits
- Reversed
- 8,104
- Recamán's sequence
- a(14,355) = 4,018
- Square (n²)
- 16,144,324
- Cube (n³)
- 64,867,893,832
- Divisor count
- 12
- σ(n) — sum of divisors
- 7,182
- φ(n) — Euler's totient
- 1,680
- Sum of prime factors
- 57
Primality
Prime factorization: 2 × 7 2 × 41
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√4,018 = [63; (2, 1, 1, 2, 1, 1, 1, 6, 2, 2, 3, 2, 3, 2, 2, 6, 1, 1, 1, 2, 1, 1, 2, 126)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- four thousand eighteen
- Ordinal
- 4018th
- Binary
- 111110110010
- Octal
- 7662
- Hexadecimal
- 0xFB2
- Base64
- D7I=
- One's complement
- 61,517 (16-bit)
- Scientific notation
- 4.018 × 10³
- As a duration
- 4,018 s = 1 hour, 6 minutes, 58 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵διηʹ
- Mayan (base 20)
- 𝋪·𝋠·𝋲
- Chinese
- 四千零一十八
- Chinese (financial)
- 肆仟零壹拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 4,018 = 5
- e — Euler's number (e)
- Digit 4,018 = 9
- φ — Golden ratio (φ)
- Digit 4,018 = 0
- √2 — Pythagoras's (√2)
- Digit 4,018 = 3
- ln 2 — Natural log of 2
- Digit 4,018 = 5
- γ — Euler-Mascheroni (γ)
- Digit 4,018 = 5
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 4018, here are decompositions:
- 5 + 4013 = 4018
- 11 + 4007 = 4018
- 17 + 4001 = 4018
- 29 + 3989 = 4018
- 71 + 3947 = 4018
- 89 + 3929 = 4018
- 101 + 3917 = 4018
- 107 + 3911 = 4018
Showing the first eight; more decompositions exist.
UTF-8 encoding: E0 BE B2 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.15.178.
- Address
- 0.0.15.178
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.15.178
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 4,018 Hz is closest to:
- Concert pitch (A4 = 440 Hz): B7 (3951.1 Hz, +29¢)
- Scientific pitch (C4 = 256 Hz): C8 (4096 Hz, -33¢)
- Baroque pitch (A4 = 415 Hz): C8 (3948.2 Hz, +30¢)
The digit sequence 4018 first appears in π at position 18,368 of the decimal expansion (the 18,368ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.