2,444
2,444 is a composite number, even.
2,444 (two thousand four hundred forty-four) is an even 4-digit number. It is a composite number with 12 divisors, and factors as 2² × 13 × 47. Written other ways, in Roman numerals it is MMCDXLIV and in binary, 100110001100.
Interestingness
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 14
- Digit product
- 128
- Digital root
- 5
- Palindrome
- No
- Bit width
- 12 bits
- Reversed
- 4,442
- Recamán's sequence
- a(3,051) = 2,444
- Square (n²)
- 5,973,136
- Cube (n³)
- 14,598,344,384
- Divisor count
- 12
- σ(n) — sum of divisors
- 4,704
- φ(n) — Euler's totient
- 1,104
- Sum of prime factors
- 64
Primality
Prime factorization: 2 2 × 13 × 47
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√2,444 = [49; (2, 3, 2, 5, 2, 1, 1, 1, 3, 1, 2, 24, 2, 1, 3, 1, 1, 1, 2, 5, 2, 3, 2, 98)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- two thousand four hundred forty-four
- Ordinal
- 2444th
- Roman numeral
- MMCDXLIV
- Binary
- 100110001100
- Octal
- 4614
- Hexadecimal
- 0x98C
- Base64
- CYw=
- One's complement
- 63,091 (16-bit)
- Scientific notation
- 2.444 × 10³
- As a duration
- 2,444 s = 40 minutes, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵βυμδʹ
- Mayan (base 20)
- 𝋦·𝋢·𝋤
- Chinese
- 二千四百四十四
- Chinese (financial)
- 貳仟肆佰肆拾肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 2,444 = 7
- e — Euler's number (e)
- Digit 2,444 = 2
- φ — Golden ratio (φ)
- Digit 2,444 = 5
- √2 — Pythagoras's (√2)
- Digit 2,444 = 2
- ln 2 — Natural log of 2
- Digit 2,444 = 2
- γ — Euler-Mascheroni (γ)
- Digit 2,444 = 6
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 2444, here are decompositions:
- 3 + 2441 = 2444
- 7 + 2437 = 2444
- 61 + 2383 = 2444
- 67 + 2377 = 2444
- 73 + 2371 = 2444
- 97 + 2347 = 2444
- 103 + 2341 = 2444
- 151 + 2293 = 2444
Showing the first eight; more decompositions exist.
UTF-8 encoding: E0 A6 8C (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.9.140.
- Address
- 0.0.9.140
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.9.140
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 2,444 Hz is closest to:
- Concert pitch (A4 = 440 Hz): D♯7 (2489 Hz, -32¢)
- Scientific pitch (C4 = 256 Hz): D♯7 (2435.5 Hz, +6¢)
- Baroque pitch (A4 = 415 Hz): E7 (2487.2 Hz, -30¢)
The digit sequence 2444 first appears in π at position 3,865 of the decimal expansion (the 3,865ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.