Number
1,857
1,857 is a composite number, odd, a calendar year.
Notable events — 1857 AD
- Mar 6 The US Supreme Court rules in Dred Scott v. Sandford that African-Americans cannot be citizens.
- May 10 The Indian Rebellion erupts against the British East India Company.
- Aug 24 The Panic of 1857 financial crisis begins.
- Mar 26 The first British transatlantic cable trial is laid.
- Jun 19 Brigham Young is replaced as Utah's territorial governor.
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
-
53
Long year: contains 53 ISO weeks.
- Started on
-
Thursday
January 1, 1857
- Ended on
-
Thursday
December 31, 1857
- Friday the 13ths
-
3
3 Friday the 13ths this year.
- Easter Sunday
-
April 12
Sunday, April 12, 1857
- Decade
-
1850s
1850–1859
- Century
-
19th century
1801–1900
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
169
169 years before 2026.
In other calendars
- Hebrew
-
5617 / 5618 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1273 / 1274 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Fire zodiac:Snake
Sexagenary cycle position 54 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2400 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1235 / 1236 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1849 / 1850 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1779 / 1778 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 21
- Digit product
- 280
- Digital root
- 3
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 7,581
- Recamán's sequence
- a(8,030) = 1,857
- Square (n²)
- 3,448,449
- Cube (n³)
- 6,403,769,793
- Divisor count
- 4
- σ(n) — sum of divisors
- 2,480
- φ(n) — Euler's totient
- 1,236
- Sum of prime factors
- 622
Primality
Prime factorization: 3 × 619
Divisors & multiples
Aliquot sum (sum of proper divisors):
623
First multiples
Sums & aliquot sequence
As consecutive integers:
928 + 929
618 + 619 + 620
307 + 308 + 309 + 310 + 311 + 312
Aliquot sequence:
1,857 → 623 → 97 → 1 → 0
— terminates at zero
Representations
- In words
- one thousand eight hundred fifty-seven
- Ordinal
- 1857th
- Roman numeral
- MDCCCLVII
- Binary
- 11101000001
- Octal
- 3501
- Hexadecimal
- 0x741
- Base64
- B0E=
- One's complement
- 63,678 (16-bit)
In other bases
ternary (3)
2112210
quaternary (4)
131001
quinary (5)
24412
senary (6)
12333
septenary (7)
5262
nonary (9)
2483
undecimal (11)
1439
duodecimal (12)
10a9
tridecimal (13)
acb
tetradecimal (14)
969
pentadecimal (15)
83c
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αωνζʹ
- Mayan (base 20)
- 𝋤·𝋬·𝋱
- Chinese
- 一千八百五十七
- Chinese (financial)
- 壹仟捌佰伍拾柒
In other modern scripts
Eastern Arabic
١٨٥٧
Devanagari
१८५७
Bengali
১৮৫৭
Tamil
௧௮௫௭
Thai
๑๘๕๗
Tibetan
༡༨༥༧
Khmer
១៨៥៧
Lao
໑໘໕໗
Burmese
၁၈၅၇
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,857 = 8
- e — Euler's number (e)
- Digit 1,857 = 9
- φ — Golden ratio (φ)
- Digit 1,857 = 2
- √2 — Pythagoras's (√2)
- Digit 1,857 = 2
- ln 2 — Natural log of 2
- Digit 1,857 = 0
- γ — Euler-Mascheroni (γ)
- Digit 1,857 = 3
Also seen as
Unicode codepoint
݁
Syriac Qushshaya
U+0741
Non-spacing mark (Mn)
UTF-8 encoding: DD 81 (2 bytes).
Hex color
#000741
RGB(0, 7, 65)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.7.65.
- Address
- 0.0.7.65
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.7.65
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Position in π
The digit sequence 1857 first appears in π at position 951 of the decimal expansion (the 951ordinal-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.