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Number

2,243

2,243 is a prime, odd.

Arithmetic Number Chen Prime Cousin Prime Deficient Number Odious Number Pernicious Number Prime Recamán's Sequence Sexy Prime Squarefree

Properties

Parity
Odd
Digit count
4
Digit sum
11
Digit product
48
Digital root
2
Palindrome
No
Bit width
12 bits
Reversed
3,422
Recamán's sequence
a(3,265) = 2,243
Square (n²)
5,031,049
Cube (n³)
11,284,642,907
Divisor count
2
σ(n) — sum of divisors
2,244
φ(n) — Euler's totient
2,242

Primality

2,243 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 2243
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 2,243)
1 × 2243
First multiples
2,243 · 4,486 (double) · 6,729 · 8,972 · 11,215 · 13,458 · 15,701 · 17,944 · 20,187 · 22,430

Sums & aliquot sequence

As consecutive integers: 1,121 + 1,122

Representations

In words
two thousand two hundred forty-three
Ordinal
2243rd
Roman numeral
MMCCXLIII
Binary
100011000011
Octal
4303
Hexadecimal
0x8C3
Base64
CMM=
One's complement
63,292 (16-bit)
In other bases
ternary (3) 10002002
quaternary (4) 203003
quinary (5) 32433
senary (6) 14215
septenary (7) 6353
nonary (9) 3062
undecimal (11) 175a
duodecimal (12) 136b
tridecimal (13) 1037
tetradecimal (14) b63
pentadecimal (15) 9e8

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹
Egyptian hieroglyphic
𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺
Greek (Milesian)
͵βσμγʹ
Mayan (base 20)
𝋥·𝋬·𝋣
Chinese
二千二百四十三
Chinese (financial)
貳仟貳佰肆拾參
In other modern scripts
Eastern Arabic ٢٢٤٣ Devanagari २२४३ Bengali ২২৪৩ Tamil ௨௨௪௩ Thai ๒๒๔๓ Tibetan ༢༢༤༣ Khmer ២២៤៣ Lao ໒໒໔໓ Burmese ၂၂၄၃

Digit at this position in famous constants

π — Pi (π)
Digit 2,243 = 9
e — Euler's number (e)
Digit 2,243 = 0
φ — Golden ratio (φ)
Digit 2,243 = 1
√2 — Pythagoras's (√2)
Digit 2,243 = 3
ln 2 — Natural log of 2
Digit 2,243 = 1
γ — Euler-Mascheroni (γ)
Digit 2,243 = 2

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 2,239 (gap of 4)
  • Next prime: 2,251 (gap of 8)

Pair status: cousin with 2239.

Unicode codepoint
Arabic Letter Ghain With Three Dots Above
U+08C3
Other letter (Lo)

UTF-8 encoding: E0 A3 83 (3 bytes).

Hex color
#0008C3
RGB(0, 8, 195)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.8.195.

Address
0.0.8.195
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.8.195

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 2243 first appears in π at position 16,403 of the decimal expansion (the 16,403ordinal-suffix:rd 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.