1,616
1,616 is a composite number, even, a calendar year.
Notable events — 1616 AD
- Apr 23 William Shakespeare and Miguel de Cervantes both die within days of each other.
- Feb 26 Galileo is warned by the Roman Inquisition not to teach heliocentrism.
- Aug 5 William Baffin explores the bay now bearing his name.
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, 1616
- Ended on
-
Saturday
December 31, 1616
- Friday the 13ths
-
1
One Friday the 13th this year.
- Easter Sunday
-
April 3
Sunday, April 3, 1616
- Decade
-
1610s
1610–1619
- Century
-
17th century
1601–1700
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
410
410 years before 2026.
In other calendars
- Hebrew
-
5376 / 5377 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1024 / 1025 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Fire zodiac:Dragon
Sexagenary cycle position 53 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2159 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
994 / 995 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1608 / 1609 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1538 / 1537 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 14
- Digit product
- 36
- Digital root
- 5
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 6,161
- Flips to (rotate 180°)
- 9,191
- Recamán's sequence
- a(720) = 1,616
- Square (n²)
- 2,611,456
- Cube (n³)
- 4,220,112,896
- Divisor count
- 10
- σ(n) — sum of divisors
- 3,162
- φ(n) — Euler's totient
- 800
- Sum of prime factors
- 109
Primality
Prime factorization: 2 4 × 101
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand six hundred sixteen
- Ordinal
- 1616th
- Roman numeral
- MDCXVI
- Binary
- 11001010000
- Octal
- 3120
- Hexadecimal
- 0x650
- Base64
- BlA=
- One's complement
- 63,919 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αχιϛʹ
- Mayan (base 20)
- 𝋤·𝋠·𝋰
- Chinese
- 一千六百一十六
- Chinese (financial)
- 壹仟陸佰壹拾陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,616 = 2
- e — Euler's number (e)
- Digit 1,616 = 7
- φ — Golden ratio (φ)
- Digit 1,616 = 1
- √2 — Pythagoras's (√2)
- Digit 1,616 = 8
- ln 2 — Natural log of 2
- Digit 1,616 = 9
- γ — Euler-Mascheroni (γ)
- Digit 1,616 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1616, here are decompositions:
- 3 + 1613 = 1616
- 7 + 1609 = 1616
- 19 + 1597 = 1616
- 37 + 1579 = 1616
- 67 + 1549 = 1616
- 73 + 1543 = 1616
- 127 + 1489 = 1616
- 157 + 1459 = 1616
Showing the first eight; more decompositions exist.
UTF-8 encoding: D9 90 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.6.80.
- Address
- 0.0.6.80
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.6.80
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1616 first appears in π at position 8,200 of the decimal expansion (the 8,200ordinal-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.