1,898
1,898 is a composite number, even, a calendar year.
Notable events — 1898 AD
- Feb 15 The USS Maine explodes in Havana Harbor.
- Apr 25 The US declares war on Spain.
- Jul 7 The US annexes Hawaii.
- Dec 10 The Treaty of Paris ends the Spanish-American War; Spain cedes Cuba, Puerto Rico, Guam, and the Philippines.
- Dec 26 Marie and Pierre Curie announce the discovery of radium.
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, 1898
- Ended on
-
Saturday
December 31, 1898
- Friday the 13ths
-
1
One Friday the 13th this year.
- Easter Sunday
-
April 10
Sunday, April 10, 1898
- Decade
-
1890s
1890–1899
- Century
-
19th century
1801–1900
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
128
128 years before 2026.
In other calendars
- Hebrew
-
5658 / 5659 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1315 / 1316 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Earth zodiac:Dog
Sexagenary cycle position 35 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2441 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1276 / 1277 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1890 / 1891 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1820 / 1819 Saka
Indian national calendar; year starts in March.
- Japanese
-
Meiji 31
Reign-era counting from the start of each emperor's reign.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 26
- Digit product
- 576
- Digital root
- 8
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 8,981
- Flips to (rotate 180°)
- 8,681
- Recamán's sequence
- a(7,948) = 1,898
- Square (n²)
- 3,602,404
- Cube (n³)
- 6,837,362,792
- Divisor count
- 8
- σ(n) — sum of divisors
- 3,108
- φ(n) — Euler's totient
- 864
- Sum of prime factors
- 88
Primality
Prime factorization: 2 × 13 × 73
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand eight hundred ninety-eight
- Ordinal
- 1898th
- Roman numeral
- MDCCCXCVIII
- Binary
- 11101101010
- Octal
- 3552
- Hexadecimal
- 0x76A
- Base64
- B2o=
- One's complement
- 63,637 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αωϟηʹ
- Mayan (base 20)
- 𝋤·𝋮·𝋲
- Chinese
- 一千八百九十八
- Chinese (financial)
- 壹仟捌佰玖拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,898 = 1
- e — Euler's number (e)
- Digit 1,898 = 4
- φ — Golden ratio (φ)
- Digit 1,898 = 9
- √2 — Pythagoras's (√2)
- Digit 1,898 = 7
- ln 2 — Natural log of 2
- Digit 1,898 = 5
- γ — Euler-Mascheroni (γ)
- Digit 1,898 = 2
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1898, here are decompositions:
- 19 + 1879 = 1898
- 31 + 1867 = 1898
- 37 + 1861 = 1898
- 67 + 1831 = 1898
- 97 + 1801 = 1898
- 109 + 1789 = 1898
- 139 + 1759 = 1898
- 151 + 1747 = 1898
Showing the first eight; more decompositions exist.
UTF-8 encoding: DD AA (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.106.
- Address
- 0.0.7.106
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.7.106
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1898 first appears in π at position 1,715 of the decimal expansion (the 1,715ordinal-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.