1,554
1,554 is a composite number, even, a calendar year.
Notable events — 1554 AD
- Jul 25 Mary I marries Philip of Spain.
- Feb 12 Lady Jane Grey is beheaded.
- Apr 11 Wyatt's Rebellion against Mary's marriage ends with the rebel's execution.
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
-
Friday
January 1, 1554
- Ended on
-
Friday
December 31, 1554
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
1550s
1550–1559
- Century
-
16th century
1501–1600
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
472
472 years before 2026.
In other calendars
- Hebrew
-
5314 / 5315 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
961 / 962 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Wood zodiac:Tiger
Sexagenary cycle position 51 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2097 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
932 / 933 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1546 / 1547 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1476 / 1475 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 15
- Digit product
- 100
- Digital root
- 6
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 4,551
- Recamán's sequence
- a(1,452) = 1,554
- Square (n²)
- 2,414,916
- Cube (n³)
- 3,752,779,464
- Divisor count
- 16
- σ(n) — sum of divisors
- 3,648
- φ(n) — Euler's totient
- 432
- Sum of prime factors
- 49
Primality
Prime factorization: 2 × 3 × 7 × 37
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand five hundred fifty-four
- Ordinal
- 1554th
- Roman numeral
- MDLIV
- Binary
- 11000010010
- Octal
- 3022
- Hexadecimal
- 0x612
- Base64
- BhI=
- One's complement
- 63,981 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αφνδʹ
- Mayan (base 20)
- 𝋣·𝋱·𝋮
- Chinese
- 一千五百五十四
- Chinese (financial)
- 壹仟伍佰伍拾肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,554 = 6
- e — Euler's number (e)
- Digit 1,554 = 4
- φ — Golden ratio (φ)
- Digit 1,554 = 9
- √2 — Pythagoras's (√2)
- Digit 1,554 = 2
- ln 2 — Natural log of 2
- Digit 1,554 = 1
- γ — Euler-Mascheroni (γ)
- Digit 1,554 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1554, here are decompositions:
- 5 + 1549 = 1554
- 11 + 1543 = 1554
- 23 + 1531 = 1554
- 31 + 1523 = 1554
- 43 + 1511 = 1554
- 61 + 1493 = 1554
- 67 + 1487 = 1554
- 71 + 1483 = 1554
Showing the first eight; more decompositions exist.
UTF-8 encoding: D8 92 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.6.18.
- Address
- 0.0.6.18
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.6.18
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1554 first appears in π at position 23,952 of the decimal expansion (the 23,952ordinal-suffix:nd 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.