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Number

1,252

1,252 is a composite number, even, a calendar year.

Deficient Number Odious Number Pernicious Number Recamán's Sequence Year

Historical context — 1252 AD

Calendar year

Year 1252 (MCCLII) was a leap year starting on Monday of the Julian calendar.

Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 · English fallback Read the full article on Wikipedia →

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
Monday
January 1, 1252
Ended on
Tuesday
December 31, 1252
Friday the 13ths
2
2 Friday the 13ths this year.
Decade
1250s
1250–1259
Century
13th century
1201–1300
Millennium
2nd millennium
1001–2000
Years ago
774
774 years before 2026.

In other calendars

Hebrew
5012 / 5013 AM
Rosh Hashanah falls in September/October.
Islamic Hijri
649 / 650 AH
Lunar calendar; year spans differ from Gregorian.
Chinese
Year of the zodiac:Water zodiac:Rat
Sexagenary cycle position 49 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era
1795 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri
630 / 631 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian
1244 / 1245 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka)
1174 / 1173 Saka
Indian national calendar; year starts in March.

Properties

Parity
Even
Digit count
4
Digit sum
10
Digit product
20
Digital root
1
Palindrome
No
Bit width
11 bits
Reversed
2,521
Recamán's sequence
a(8,484) = 1,252
Square (n²)
1,567,504
Cube (n³)
1,962,515,008
Divisor count
6
σ(n) — sum of divisors
2,198
φ(n) — Euler's totient
624
Sum of prime factors
317

Primality

Prime factorization: 2 2 × 313

Nearest primes: 1,249 (−3) · 1,259 (+7)

Divisors & multiples

All divisors (6)
1 · 2 · 4 · 313 · 626 (half) · 1252
Aliquot sum (sum of proper divisors): 946
Factor pairs (a × b = 1,252)
1 × 1252
2 × 626
4 × 313
First multiples
1,252 · 2,504 (double) · 3,756 · 5,008 · 6,260 · 7,512 · 8,764 · 10,016 · 11,268 · 12,520

Sums & aliquot sequence

As a sum of two squares: 24² + 26²
As consecutive integers: 153 + 154 + … + 160
Aliquot sequence: 1,252 946 638 442 314 160 218 112 136 134 70 74 40 50 43 1 0 — terminates at zero

Representations

In words
one thousand two hundred fifty-two
Ordinal
1252nd
Roman numeral
MCCLII
Binary
10011100100
Octal
2344
Hexadecimal
0x4E4
Base64
BOQ=
One's complement
64,283 (16-bit)
In other bases
ternary (3) 1201101
quaternary (4) 103210
quinary (5) 20002
senary (6) 5444
septenary (7) 3436
nonary (9) 1641
undecimal (11) a39
duodecimal (12) 884
tridecimal (13) 754
tetradecimal (14) 656
pentadecimal (15) 587

Historical numeral systems

Babylonian (base 60)
𒌋𒌋 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian)
͵ασνβʹ
Mayan (base 20)
𝋣·𝋢·𝋬
Chinese
一千二百五十二
Chinese (financial)
壹仟貳佰伍拾貳
In other modern scripts
Eastern Arabic ١٢٥٢ Devanagari १२५२ Bengali ১২৫২ Tamil ௧௨௫௨ Thai ๑๒๕๒ Tibetan ༡༢༥༢ Khmer ១២៥២ Lao ໑໒໕໒ Burmese ၁၂၅၂

Digit at this position in famous constants

π — Pi (π)
Digit 1,252 = 9
e — Euler's number (e)
Digit 1,252 = 6
φ — Golden ratio (φ)
Digit 1,252 = 8
√2 — Pythagoras's (√2)
Digit 1,252 = 1
ln 2 — Natural log of 2
Digit 1,252 = 9
γ — Euler-Mascheroni (γ)
Digit 1,252 = 9

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1252, here are decompositions:

  • 3 + 1249 = 1252
  • 23 + 1229 = 1252
  • 29 + 1223 = 1252
  • 59 + 1193 = 1252
  • 71 + 1181 = 1252
  • 89 + 1163 = 1252
  • 101 + 1151 = 1252
  • 149 + 1103 = 1252

Showing the first eight; more decompositions exist.

Unicode codepoint
Ӥ
Cyrillic Capital Letter I With Diaeresis
U+04E4
Uppercase letter (Lu)

UTF-8 encoding: D3 A4 (2 bytes).

Code page identifier

Code page 1252 is Windows-1252 (Western) — Microsoft Windows encoding for Western European languages — the default for English-locale Windows.

Code pages are integer identifiers used by Windows and other systems to refer to specific character encodings.

Hex color
#0004E4
RGB(0, 4, 228)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.228.

Address
0.0.4.228
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.4.228

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

Position in π

The digit sequence 1252 first appears in π at position 1,843 of the decimal expansion (the 1,843ordinal-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.