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Number

1,227

1,227 is a composite number, odd, a calendar year.

Arithmetic Number Deficient Number Evil Number Recamán's Sequence Semiprime Squarefree Year

Notable events — 1227 AD

  1. Aug 18 Genghis Khan dies during the Mongol siege of the Tangut capital.

Events compiled from Wikipedia ↗ · Licensed CC BY-SA 4.0

Year facts

Year type
Common year
Standard 365-day year; not divisible by 4 (or divisible by 100 but not 400).
Days in year
365
ISO weeks
52
Started on
Friday
January 1, 1227
Ended on
Friday
December 31, 1227
Friday the 13ths
1
One Friday the 13th this year.
Decade
1220s
1220–1229
Century
13th century
1201–1300
Millennium
2nd millennium
1001–2000
Years ago
799
799 years before 2026.

In other calendars

Hebrew
4987 / 4988 AM
Rosh Hashanah falls in September/October.
Islamic Hijri
624 / 625 AH
Lunar calendar; year spans differ from Gregorian.
Chinese
Year of the zodiac:Fire zodiac:Pig
Sexagenary cycle position 24 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era
1770 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri
605 / 606 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian
1219 / 1220 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka)
1149 / 1148 Saka
Indian national calendar; year starts in March.

Properties

Parity
Odd
Digit count
4
Digit sum
12
Digit product
28
Digital root
3
Palindrome
No
Bit width
11 bits
Reversed
7,221
Recamán's sequence
a(8,534) = 1,227
Square (n²)
1,505,529
Cube (n³)
1,847,284,083
Divisor count
4
σ(n) — sum of divisors
1,640
φ(n) — Euler's totient
816
Sum of prime factors
412

Primality

Prime factorization: 3 × 409

Nearest primes: 1,223 (−4) · 1,229 (+2)

Divisors & multiples

All divisors (4)
1 · 3 · 409 · 1227
Aliquot sum (sum of proper divisors): 413
Factor pairs (a × b = 1,227)
1 × 1227
3 × 409
First multiples
1,227 · 2,454 (double) · 3,681 · 4,908 · 6,135 · 7,362 · 8,589 · 9,816 · 11,043 · 12,270

Sums & aliquot sequence

As consecutive integers: 613 + 614 408 + 409 + 410 202 + 203 + 204 + 205 + 206 + 207
Aliquot sequence: 1,227 413 67 1 0 — terminates at zero

Representations

In words
one thousand two hundred twenty-seven
Ordinal
1227th
Roman numeral
MCCXXVII
Binary
10011001011
Octal
2313
Hexadecimal
0x4CB
Base64
BMs=
One's complement
64,308 (16-bit)
In other bases
ternary (3) 1200110
quaternary (4) 103023
quinary (5) 14402
senary (6) 5403
septenary (7) 3402
nonary (9) 1613
undecimal (11) a16
duodecimal (12) 863
tridecimal (13) 735
tetradecimal (14) 639
pentadecimal (15) 56c

Historical numeral systems

Babylonian (base 60)
𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆼𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ασκζʹ
Mayan (base 20)
𝋣·𝋡·𝋧
Chinese
一千二百二十七
Chinese (financial)
壹仟貳佰貳拾柒
In other modern scripts
Eastern Arabic ١٢٢٧ Devanagari १२२७ Bengali ১২২৭ Tamil ௧௨௨௭ Thai ๑๒๒๗ Tibetan ༡༢༢༧ Khmer ១២២៧ Lao ໑໒໒໗ Burmese ၁၂၂၇

Digit at this position in famous constants

π — Pi (π)
Digit 1,227 = 8
e — Euler's number (e)
Digit 1,227 = 1
φ — Golden ratio (φ)
Digit 1,227 = 2
√2 — Pythagoras's (√2)
Digit 1,227 = 5
ln 2 — Natural log of 2
Digit 1,227 = 9
γ — Euler-Mascheroni (γ)
Digit 1,227 = 6

Also seen as

Unicode codepoint
Ӌ
Cyrillic Capital Letter Khakassian Che
U+04CB
Uppercase letter (Lu)

UTF-8 encoding: D3 8B (2 bytes).

Hex color
#0004CB
RGB(0, 4, 203)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.203.

Address
0.0.4.203
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.4.203

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

Position in π

The digit sequence 1227 first appears in π at position 483 of the decimal expansion (the 483ordinal-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.