1,907
1,907 is a prime, odd, a calendar year.
1,907 (one thousand nine hundred seven) is an odd 4-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in Roman numerals it is MCMVII and in binary, 11101110011.
Interestingness
Notable events — 1907 AD
- Mar 3 The British battleship HMS Dreadnought is commissioned, sparking a naval arms race.
- Sep 7 Cunard's RMS Lusitania makes her maiden voyage.
- Oct 21 The Panic of 1907 financial crisis peaks; J.P. Morgan stems the run.
- Nov 16 Oklahoma becomes the 46th US state.
- Dec 6 An explosion at the Monongah coal mine in West Virginia kills 362.
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
-
Tuesday
January 1, 1907
- Ended on
-
Tuesday
December 31, 1907
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Easter Sunday
-
March 31
Sunday, March 31, 1907
- Decade
-
1900s
1900–1909
- Century
-
20th century
1901–2000
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
119
119 years before 2026.
In other calendars
- Hebrew
-
5667 / 5668 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1324 / 1325 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Fire zodiac:Goat
Sexagenary cycle position 44 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2450 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1285 / 1286 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1899 / 1900 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1829 / 1828 Saka
Indian national calendar; year starts in March.
- Japanese
-
Meiji 40
Reign-era counting from the start of each emperor's reign.
Properties
Primality
1,907 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,907 = [43; (1, 2, 43, 2, 1, 86)]
Period length 6 — the block in parentheses repeats forever.
Representations
- In words
- one thousand nine hundred seven
- Ordinal
- 1907th
- Roman numeral
- MCMVII
- Binary
- 11101110011
- Octal
- 3563
- Hexadecimal
- 0x773
- Base64
- B3M=
- One's complement
- 63,628 (16-bit)
- Scientific notation
- 1.907 × 10³
- As a duration
- 1,907 s = 31 minutes, 47 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αϡζʹ
- Mayan (base 20)
- 𝋤·𝋯·𝋧
- Chinese
- 一千九百零七
- Chinese (financial)
- 壹仟玖佰零柒
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,907 = 2
- e — Euler's number (e)
- Digit 1,907 = 7
- φ — Golden ratio (φ)
- Digit 1,907 = 5
- √2 — Pythagoras's (√2)
- Digit 1,907 = 1
- ln 2 — Natural log of 2
- Digit 1,907 = 0
- γ — Euler-Mascheroni (γ)
- Digit 1,907 = 3
Also seen as
UTF-8 encoding: DD B3 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.115.
- Address
- 0.0.7.115
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.7.115
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 1,907 Hz is closest to:
- Concert pitch (A4 = 440 Hz): A♯6 (1864.7 Hz, +39¢)
- Scientific pitch (C4 = 256 Hz): B6 (1933.1 Hz, -23¢)
- Baroque pitch (A4 = 415 Hz): B6 (1863.3 Hz, +40¢)
The digit sequence 1907 first appears in π at position 541 of the decimal expansion (the 541ordinal-suffix:st 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
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.