1,190
1,190 is a composite number, even, a calendar year.
1,190 (one thousand one hundred ninety) is an even 4-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 7 × 17. Its proper divisors sum to 1,402, more than the number itself, making it an abundant number. Written other ways, in Roman numerals it is MCXC and in binary, 10010100110.
Interestingness
Historical context — 1190 AD
Calendar year
Year 1190 (MCXC) was a common year starting on Monday of the Julian calendar.
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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
-
Monday
January 1, 1190
- Ended on
-
Monday
December 31, 1190
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
1190s
1190–1199
- Century
-
12th century
1101–1200
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
836
836 years before 2026.
In other calendars
- Hebrew
-
4950 / 4951 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
585 / 586 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Metal zodiac:Dog
Sexagenary cycle position 47 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1733 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
568 / 569 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1182 / 1183 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1112 / 1111 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 911
- Flips to (rotate 180°)
- 611
- Recamán's sequence
- a(8,608) = 1,190
- Square (n²)
- 1,416,100
- Cube (n³)
- 1,685,159,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 2,592
- φ(n) — Euler's totient
- 384
- Sum of prime factors
- 31
Primality
Prime factorization: 2 × 5 × 7 × 17
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,190 = [34; (2, 68)]
Period length 2 — the block in parentheses repeats forever.
Representations
- In words
- one thousand one hundred ninety
- Ordinal
- 1190th
- Roman numeral
- MCXC
- Binary
- 10010100110
- Octal
- 2246
- Hexadecimal
- 0x4A6
- Base64
- BKY=
- One's complement
- 64,345 (16-bit)
- Scientific notation
- 1.19 × 10³
- As a duration
- 1,190 s = 19 minutes, 50 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵αρϟʹ
- Mayan (base 20)
- 𝋢·𝋳·𝋪
- Chinese
- 一千一百九十
- Chinese (financial)
- 壹仟壹佰玖拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,190 = 0
- e — Euler's number (e)
- Digit 1,190 = 4
- φ — Golden ratio (φ)
- Digit 1,190 = 3
- √2 — Pythagoras's (√2)
- Digit 1,190 = 9
- ln 2 — Natural log of 2
- Digit 1,190 = 5
- γ — Euler-Mascheroni (γ)
- Digit 1,190 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1190, here are decompositions:
- 3 + 1187 = 1190
- 19 + 1171 = 1190
- 37 + 1153 = 1190
- 61 + 1129 = 1190
- 67 + 1123 = 1190
- 73 + 1117 = 1190
- 97 + 1093 = 1190
- 103 + 1087 = 1190
Showing the first eight; more decompositions exist.
UTF-8 encoding: D2 A6 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.166.
- Address
- 0.0.4.166
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.4.166
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 1,190 Hz is closest to:
- Concert pitch (A4 = 440 Hz): D6 (1174.7 Hz, +22¢)
- Scientific pitch (C4 = 256 Hz): D♯6 (1217.7 Hz, -40¢)
- Baroque pitch (A4 = 415 Hz): D♯6 (1173.8 Hz, +24¢)
The digit sequence 1190 first appears in π at position 5,967 of the decimal expansion (the 5,967ordinal-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.