1,626
1,626 is a composite number, even, a calendar year.
Notable events — 1626 AD
- May 24 Peter Minuit purchases Manhattan from the Lenape for goods valued at 60 guilders.
- Aug 27 Catholic forces win at Lutter, crushing Danish intervention in the Thirty Years' War.
- Apr 9 Francis Bacon dies after experimenting with food preservation.
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, 1626
- Ended on
-
Thursday
December 31, 1626
- Friday the 13ths
-
3
3 Friday the 13ths this year.
- Easter Sunday
-
April 12
Sunday, April 12, 1626
- Decade
-
1620s
1620–1629
- Century
-
17th century
1601–1700
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
400
400 years before 2026.
In other calendars
- Hebrew
-
5386 / 5387 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
1035 / 1036 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Fire zodiac:Tiger
Sexagenary cycle position 3 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2169 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
1004 / 1005 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1618 / 1619 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1548 / 1547 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 15
- Digit product
- 72
- Digital root
- 6
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 6,261
- Recamán's sequence
- a(700) = 1,626
- Square (n²)
- 2,643,876
- Cube (n³)
- 4,298,942,376
- Divisor count
- 8
- σ(n) — sum of divisors
- 3,264
- φ(n) — Euler's totient
- 540
- Sum of prime factors
- 276
Primality
Prime factorization: 2 × 3 × 271
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand six hundred twenty-six
- Ordinal
- 1626th
- Roman numeral
- MDCXXVI
- Binary
- 11001011010
- Octal
- 3132
- Hexadecimal
- 0x65A
- Base64
- Blo=
- One's complement
- 63,909 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αχκϛʹ
- Mayan (base 20)
- 𝋤·𝋡·𝋦
- Chinese
- 一千六百二十六
- Chinese (financial)
- 壹仟陸佰貳拾陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,626 = 1
- e — Euler's number (e)
- Digit 1,626 = 3
- φ — Golden ratio (φ)
- Digit 1,626 = 4
- √2 — Pythagoras's (√2)
- Digit 1,626 = 6
- ln 2 — Natural log of 2
- Digit 1,626 = 4
- γ — Euler-Mascheroni (γ)
- Digit 1,626 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1626, here are decompositions:
- 5 + 1621 = 1626
- 7 + 1619 = 1626
- 13 + 1613 = 1626
- 17 + 1609 = 1626
- 19 + 1607 = 1626
- 29 + 1597 = 1626
- 43 + 1583 = 1626
- 47 + 1579 = 1626
Showing the first eight; more decompositions exist.
UTF-8 encoding: D9 9A (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.6.90.
- Address
- 0.0.6.90
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.6.90
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1626 first appears in π at position 13,510 of the decimal expansion (the 13,510ordinal-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.