1,859
1,859 is a composite number, odd, a calendar year.
1,859 (one thousand eight hundred fifty-nine) is an odd 4-digit number. It is a composite number with 6 divisors, and factors as 11 × 13². Written other ways, in Roman numerals it is MDCCCLIX and in binary, 11101000011.
Interestingness
Notable events — 1859 AD
- Oct 16 John Brown's abolitionist raid on Harpers Ferry begins.
- Nov 24 Charles Darwin publishes On the Origin of Species.
- Sep 1 The Carrington Event, the largest recorded solar storm, disrupts global telegraphs.
- Aug 28 Edwin Drake strikes oil in Titusville, Pennsylvania, launching the petroleum industry.
- Apr 23 France's Napoleon III declares war on Austria, beginning the Second Italian War.
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
-
Saturday
January 1, 1859
- Ended on
-
Saturday
December 31, 1859
- Friday the 13ths
-
1
One Friday the 13th this year.
- Easter Sunday
-
April 24
Sunday, April 24, 1859
- Decade
-
1850s
1850–1859
- Century
-
19th century
1801–1900
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
167
167 years before 2026.
In other calendars
- Hebrew
-
5619 / 5620 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1275 / 1276 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Earth zodiac:Goat
Sexagenary cycle position 56 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2402 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1237 / 1238 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1851 / 1852 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1781 / 1780 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 23
- Digit product
- 360
- Digital root
- 5
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 9,581
- Recamán's sequence
- a(8,026) = 1,859
- Square (n²)
- 3,455,881
- Cube (n³)
- 6,424,482,779
- Divisor count
- 6
- σ(n) — sum of divisors
- 2,196
- φ(n) — Euler's totient
- 1,560
- Sum of prime factors
- 37
Primality
Prime factorization: 11 × 13 2
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,859 = [43; (8, 1, 1, 1, 1, 2, 1, 5, 2, 3, 2, 5, 1, 2, 1, 1, 1, 1, 8, 86)]
Period length 20 — the block in parentheses repeats forever.
Representations
- In words
- one thousand eight hundred fifty-nine
- Ordinal
- 1859th
- Roman numeral
- MDCCCLIX
- Binary
- 11101000011
- Octal
- 3503
- Hexadecimal
- 0x743
- Base64
- B0M=
- One's complement
- 63,676 (16-bit)
- Scientific notation
- 1.859 × 10³
- As a duration
- 1,859 s = 30 minutes, 59 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αωνθʹ
- Mayan (base 20)
- 𝋤·𝋬·𝋳
- Chinese
- 一千八百五十九
- Chinese (financial)
- 壹仟捌佰伍拾玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,859 = 8
- e — Euler's number (e)
- Digit 1,859 = 8
- φ — Golden ratio (φ)
- Digit 1,859 = 4
- √2 — Pythagoras's (√2)
- Digit 1,859 = 7
- ln 2 — Natural log of 2
- Digit 1,859 = 1
- γ — Euler-Mascheroni (γ)
- Digit 1,859 = 4
Also seen as
UTF-8 encoding: DD 83 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.67.
- Address
- 0.0.7.67
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.7.67
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 1,859 Hz is closest to:
- Concert pitch (A4 = 440 Hz): A♯6 (1864.7 Hz, -5¢)
- Scientific pitch (C4 = 256 Hz): A♯6 (1824.6 Hz, +32¢)
- Baroque pitch (A4 = 415 Hz): B6 (1863.3 Hz, -4¢)
The digit sequence 1859 first appears in π at position 797 of the decimal expansion (the 797ordinal-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.