1,244
1,244 is a composite number, even, a calendar year.
1,244 (one thousand two hundred forty-four) is an even 4-digit number. It is a composite number with 6 divisors, and factors as 2² × 311. Written other ways, in Roman numerals it is MCCXLIV and in binary, 10011011100.
Interestingness
Historical context — 1244 AD
Calendar year
Year 1244 (MCCXLIV) was a leap year starting on Friday of the Julian calendar.
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Year facts
- Year type
-
Leap year
Divisible by 4 and not by 100; February has 29 days.
- Days in year
- 366
- ISO weeks
- 52
- Started on
-
Friday
January 1, 1244
- Ended on
-
Saturday
December 31, 1244
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
1240s
1240–1249
- Century
-
13th century
1201–1300
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
782
782 years before 2026.
In other calendars
- Hebrew
-
5004 / 5005 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
641 / 642 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Wood zodiac:Dragon
Sexagenary cycle position 41 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1787 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
622 / 623 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1236 / 1237 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1166 / 1165 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 2 × 311
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,244 = [35; (3, 1, 2, 3, 6, 8, 1, 1, 1, 13, 2, 4, 1, 16, 1, 4, 2, 13, 1, 1, 1, 8, 6, 3, …)]
Period length 28 — the block in parentheses repeats forever.
Representations
- In words
- one thousand two hundred forty-four
- Ordinal
- 1244th
- Roman numeral
- MCCXLIV
- Binary
- 10011011100
- Octal
- 2334
- Hexadecimal
- 0x4DC
- Base64
- BNw=
- One's complement
- 64,291 (16-bit)
- Scientific notation
- 1.244 × 10³
- As a duration
- 1,244 s = 20 minutes, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ασμδʹ
- Mayan (base 20)
- 𝋣·𝋢·𝋤
- Chinese
- 一千二百四十四
- Chinese (financial)
- 壹仟貳佰肆拾肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,244 = 7
- e — Euler's number (e)
- Digit 1,244 = 6
- φ — Golden ratio (φ)
- Digit 1,244 = 0
- √2 — Pythagoras's (√2)
- Digit 1,244 = 3
- ln 2 — Natural log of 2
- Digit 1,244 = 0
- γ — Euler-Mascheroni (γ)
- Digit 1,244 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1244, here are decompositions:
- 7 + 1237 = 1244
- 13 + 1231 = 1244
- 31 + 1213 = 1244
- 43 + 1201 = 1244
- 73 + 1171 = 1244
- 127 + 1117 = 1244
- 151 + 1093 = 1244
- 157 + 1087 = 1244
Showing the first eight; more decompositions exist.
UTF-8 encoding: D3 9C (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.220.
- Address
- 0.0.4.220
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.4.220
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 1,244 Hz is closest to:
- Concert pitch (A4 = 440 Hz): D♯6 (1244.5 Hz, -1¢)
- Scientific pitch (C4 = 256 Hz): D♯6 (1217.7 Hz, +37¢)
- Baroque pitch (A4 = 415 Hz): E6 (1243.6 Hz, +1¢)
The digit sequence 1244 first appears in π at position 2,307 of the decimal expansion (the 2,307ordinal-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.