1,368
1,368 is a composite number, even, a calendar year.
Notable events — 1368 AD
- Jan 23 Zhu Yuanzhang proclaims himself Hongwu Emperor, founding the Ming dynasty.
Events compiled from Wikipedia ↗ · Licensed CC BY-SA 4.0
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, 1368
- Ended on
-
Saturday
December 31, 1368
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
1360s
1360–1369
- Century
-
14th century
1301–1400
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
658
658 years before 2026.
In other calendars
- Hebrew
-
5128 / 5129 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
769 / 770 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Earth zodiac:Monkey
Sexagenary cycle position 45 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1911 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
746 / 747 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1360 / 1361 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1290 / 1289 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 18
- Digit product
- 144
- Digital root
- 9
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 8,631
- Recamán's sequence
- a(8,392) = 1,368
- Square (n²)
- 1,871,424
- Cube (n³)
- 2,560,108,032
- Divisor count
- 24
- σ(n) — sum of divisors
- 3,900
- φ(n) — Euler's totient
- 432
- Sum of prime factors
- 31
Primality
Prime factorization: 2 3 × 3 2 × 19
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand three hundred sixty-eight
- Ordinal
- 1368th
- Roman numeral
- MCCCLXVIII
- Binary
- 10101011000
- Octal
- 2530
- Hexadecimal
- 0x558
- Base64
- BVg=
- One's complement
- 64,167 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ατξηʹ
- Mayan (base 20)
- 𝋣·𝋨·𝋨
- Chinese
- 一千三百六十八
- Chinese (financial)
- 壹仟參佰陸拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,368 = 4
- e — Euler's number (e)
- Digit 1,368 = 6
- φ — Golden ratio (φ)
- Digit 1,368 = 1
- √2 — Pythagoras's (√2)
- Digit 1,368 = 2
- ln 2 — Natural log of 2
- Digit 1,368 = 0
- γ — Euler-Mascheroni (γ)
- Digit 1,368 = 2
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1368, here are decompositions:
- 7 + 1361 = 1368
- 41 + 1327 = 1368
- 47 + 1321 = 1368
- 61 + 1307 = 1368
- 67 + 1301 = 1368
- 71 + 1297 = 1368
- 79 + 1289 = 1368
- 89 + 1279 = 1368
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.88.
- Address
- 0.0.5.88
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.5.88
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.
Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.
The digit sequence 1368 first appears in π at position 2,545 of the decimal expansion (the 2,545ordinal-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.