1,297
1,297 is a prime, odd, a calendar year.
Historical context — 1297 AD
Calendar year
Year 1297 (MCCXCVII) was a common year starting on Tuesday 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
-
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
-
Tuesday
January 1, 1297
- Ended on
-
Tuesday
December 31, 1297
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
1290s
1290–1299
- Century
-
13th century
1201–1300
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
729
729 years before 2026.
In other calendars
- Hebrew
-
5057 / 5058 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
696 / 697 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Fire zodiac:Rooster
Sexagenary cycle position 34 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1840 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
675 / 676 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1289 / 1290 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1219 / 1218 Saka
Indian national calendar; year starts in March.
Properties
Primality
1,297 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand two hundred ninety-seven
- Ordinal
- 1297th
- Roman numeral
- MCCXCVII
- Binary
- 10100010001
- Octal
- 2421
- Hexadecimal
- 0x511
- Base64
- BRE=
- One's complement
- 64,238 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ασϟζʹ
- Mayan (base 20)
- 𝋣·𝋤·𝋱
- Chinese
- 一千二百九十七
- Chinese (financial)
- 壹仟貳佰玖拾柒
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,297 = 9
- e — Euler's number (e)
- Digit 1,297 = 3
- φ — Golden ratio (φ)
- Digit 1,297 = 5
- √2 — Pythagoras's (√2)
- Digit 1,297 = 4
- ln 2 — Natural log of 2
- Digit 1,297 = 2
- γ — Euler-Mascheroni (γ)
- Digit 1,297 = 5
Also seen as
UTF-8 encoding: D4 91 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.17.
- Address
- 0.0.5.17
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.5.17
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1297 first appears in π at position 2,632 of the decimal expansion (the 2,632ordinal-suffix:nd 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.